Chat messages not displaying

Since last update, chat messages no longer post to window. We have most current version of WP, latest version of plugin, and the Avada theme.

Debug message is:

2023-02-08 01:40:15 [debug] [engine.ajax.AjaxEngineMaintenance] [onMaintenanceRequestError] [responseText] "
\nNotice: Undefined index: use_concurrent in /var/convesio/wordpress/wp-content/plugins/content-protector-premium/inc/admin/inc/class-ps-admin.php on line 51
\n
\nNotice: Undefined index: fusion_builder_container in /var/convesio/wordpress/wp-content/plugins/elegant-elements-fusion-builder/inc/helpers.php on line 25
\n
\nNotice: Trying to access array offset on value of type null in /var/convesio/wordpress/wp-content/plugins/elegant-elements-fusion-builder/inc/helpers.php on line 25
\n
\nNotice: Undefined index: fusion_builder_column in /var/convesio/wordpress/wp-content/plugins/elegant-elements-fusion-builder/inc/helpers.php on line 25
\n
\nNotice: Trying to access array offset on value of type null in /var/convesio/wordpress/wp-content/plugins/elegant-elements-fusion-builder/inc/helpers.php on line 25
\n
\nNotice: Undefined property: stdClass::$avatar_url in /var/convesio/wordpress/wp-content/plugins/wise-chat/src/dao/user/WiseChatUsersDAO.php on line 314
\n
\nNotice: Undefined property: stdClass::$avatar_url in /var/convesio/wordpress/wp-content/plugins/wise-chat/src/dao/user/WiseChatUsersDAO.php on line 314
\n
\nNotice: Undefined property: stdClass::$avatar_url in /var/convesio/wordpress/wp-content/plugins/wise-chat/src/dao/user/WiseChatUsersDAO.php on line 314
\n{\"events\":[{\"name\":\"publicChannels\",\"data\":[{\"id\":\"dkF5U1RqbmtwdElnd1VuNmxMTjdiUT09\",\"readOnly\":false,\"type\":\"public\",\"name\":\"Main\",\"avatar\":\"https:\/\/canconference2023.com\/wp-content\/plugins\/wise-chat\/gfx\/icons\/public-channel.png\",\"full\":false,\"protected\":false,\"authorized\":true}]},{\"name\":\"onlineUsersCounter\",\"data\":2},{\"name\":\"user\",\"data\":{\"id\":\"c2tXM21qdUtlc1dxbkxpWjJkamlrUT09\",\"cacheId\":\"f5ba1e7db9c3bf3587a469eb0c117d3d95132be6_c2tXM21qdUtlc1dxbkxpWjJkamlrUT09\",\"name\":\"Amber Prince\",\"settings\":{\"enableNotifications\":true,\"textColor\":null,\"allowChangeTextColor\":false,\"allowControlUserNotifications\":false,\"allowMuteSound\":false,\"allowChangeUserName\":false,\"allowCustomize\":false,\"muteSounds\":false},\"rights\":{\"deleteMessages\":true,\"deleteOwnMessages\":false,\"muteUsers\":true,\"banUsers\":true,\"spamReport\":true}}},{\"name\":\"auth\",\"data\":null},{\"name\":\"checkSum\",\"data\":\"WlhWdGFHVXJiMjFxWjNkQ1QyTTJaakZzWkVaRlZrcGtTUzlzVW14cVZISkdjeTlVVEhOc1NISkNRemhoYWpJMk9XZFdjRzF6ZERRNFUyWkRVRFEyVVZVNFdrSjBZazV5UzNKRWVFOUJjSGxUVkRKaksybEJNWFV5UVZOT2FFOXVNbmM1VUV3cldHdFhSbUp2YTA1VmNXMUVVSE5IZUhac1ZHZFhWemhYV0ZWWVIzWmhUVU5LVWpGcU1ETmhlRmRoTlZCVlIzSXdSMWR2YldOMWJFMVNiRFZtTTJ3MU5UVTNhR2hGUFE9PQ==\"},{\"name\":\"i18n\",\"data\":{\"unsupportedTypeOfFile\":\"Unsupported type of file.\",\"sizeLimitError\":\"The size of the file exceeds allowed limit.\",\"close\":\"Close\",\"ok\":\"OK\",\"yes\":\"Yes\",\"no\":\"No\",\"error\":\"Error\",\"information\":\"Information\",\"confirmation\":\"Confirmation\",\"enterYourUsername\":\"Enter your username\",\"enterPassword\":\"Enter password\",\"name\":\"Name\",\"save\":\"Save\",\"reset\":\"Reset\",\"muteSounds\":\"Mute sounds\",\"textColor\":\"Text color\",\"uploadPicture\":\"Upload a picture\",\"attachFile\":\"Attach a file\",\"insertEmoticon\":\"Insert an emoticon\",\"messageInputTitle\":\"Use Shift+ENTER in order to move to the next line.\",\"deleteMessage\":\"Delete the message\",\"banThisUser\":\"Ban this user\",\"muteThisUser\":\"Mute this user\",\"reportSpam\":\"Report spam\",\"deleteConfirmation\":\"Are you sure you want to delete this message?\",\"banConfirmation\":\"Are you sure you want to ban this user?\",\"banConfirmed\":\"The user has been banned.\",\"muteConfirmation\":\"Are you sure you want to mute this user?\",\"muteConfirmed\":\"The user has been muted.\",\"spamReportConfirmation\":\"Are you sure you want to report the message as spam?\",\"spamReportConfirmed\":\"Thank you for reporting this.\",\"subChannelsSearchHint\":\"Search …\",\"savedSettings\":\"Settings have been saved.\",\"maximize\":\"Maximize\",\"minimize\":\"Minimize\",\"chatFull\":\"The chat is full now. Try again later.\",\"onlineUsers\":\"Online users\"}}],\"actions\":[],\"lastActionId\":17}"
2023-02-08 01:40:15 [debug] [engine.ajax.AjaxEngineMaintenance] [onMaintenanceRequestError] [errorThrown] {}
2023-02-08 01:40:15 [debug] [engine.ajax.AjaxEngineMaintenance] [onMaintenanceRequestError] [exception] "Unexpected token '<', \"
\n\"… is not valid JSON" 2023-02-08 01:40:15 [error] Maintenance fatal error: SyntaxError: Unexpected token '<', "
"… is not valid JSON 2023-02-08 01:40:35 [debug] [engine.ajax.AjaxEngineMaintenance] [onMaintenanceRequestError] [responseText] "
\nNotice: Undefined index: use_concurrent in /var/convesio/wordpress/wp-content/plugins/content-protector-premium/inc/admin/inc/class-ps-admin.php on line 51
\n
\nNotice: Undefined index: fusion_builder_container in /var/convesio/wordpress/wp-content/plugins/elegant-elements-fusion-builder/inc/helpers.php on line 25
\n
\nNotice: Trying to access array offset on value of type null in /var/convesio/wordpress/wp-content/plugins/elegant-elements-fusion-builder/inc/helpers.php on line 25
\n
\nNotice: Undefined index: fusion_builder_column in /var/convesio/wordpress/wp-content/plugins/elegant-elements-fusion-builder/inc/helpers.php on line 25
\n
\nNotice: Trying to access array offset on value of type null in /var/convesio/wordpress/wp-content/plugins/elegant-elements-fusion-builder/inc/helpers.php on line 25
\n
\nNotice: Undefined property: stdClass::$avatar_url in /var/convesio/wordpress/wp-content/plugins/wise-chat/src/dao/user/WiseChatUsersDAO.php on line 314
\n
\nNotice: Undefined property: stdClass::$avatar_url in /var/convesio/wordpress/wp-content/plugins/wise-chat/src/dao/user/WiseChatUsersDAO.php on line 314
\n
\nNotice: Undefined property: stdClass::$avatar_url in /var/convesio/wordpress/wp-content/plugins/wise-chat/src/dao/user/WiseChatUsersDAO.php on line 314
\n{\"events\":[{\"name\":\"publicChannels\",\"data\":[{\"id\":\"dkF5U1RqbmtwdElnd1VuNmxMTjdiUT09\",\"readOnly\":false,\"type\":\"public\",\"name\":\"Main\",\"avatar\":\"https:\/\/canconference2023.com\/wp-content\/plugins\/wise-chat\/gfx\/icons\/public-channel.png\",\"full\":false,\"protected\":false,\"authorized\":true}]},{\"name\":\"onlineUsersCounter\",\"data\":2},{\"name\":\"user\",\"data\":{\"id\":\"c2tXM21qdUtlc1dxbkxpWjJkamlrUT09\",\"cacheId\":\"f5ba1e7db9c3bf3587a469eb0c117d3d95132be6_c2tXM21qdUtlc1dxbkxpWjJkamlrUT09\",\"name\":\"Amber Prince\",\"settings\":{\"enableNotifications\":true,\"textColor\":null,\"allowChangeTextColor\":false,\"allowControlUserNotifications\":false,\"allowMuteSound\":false,\"allowChangeUserName\":false,\"allowCustomize\":false,\"muteSounds\":false},\"rights\":{\"deleteMessages\":true,\"deleteOwnMessages\":false,\"muteUsers\":true,\"banUsers\":true,\"spamReport\":true}}},{\"name\":\"auth\",\"data\":null},{\"name\":\"checkSum\",\"data\":\"WlhWdGFHVXJiMjFxWjNkQ1QyTTJaakZzWkVaRlZrcGtTUzlzVW14cVZISkdjeTlVVEhOc1NISkNRemhoYWpJMk9XZFdjRzF6ZERRNFUyWkRVRFEyVVZVNFdrSjBZazV5UzNKRWVFOUJjSGxUVkRKaksybEJNWFV5UVZOT2FFOXVNbmM1VUV3cldHdFhSbUp2YTA1VmNXMUVVSE5IZUhac1ZHZFhWemhYV0ZWWVIzWmhUVU5LVWpGcU1ETmhlRmRoTlZCVlIzSTNXalpEVW5sSVZXVm1LMGhtUm5oblMwZHVWbGR6UFE9PQ==\"},{\"name\":\"i18n\",\"data\":{\"unsupportedTypeOfFile\":\"Unsupported type of file.\",\"sizeLimitError\":\"The size of the file exceeds allowed limit.\",\"close\":\"Close\",\"ok\":\"OK\",\"yes\":\"Yes\",\"no\":\"No\",\"error\":\"Error\",\"information\":\"Information\",\"confirmation\":\"Confirmation\",\"enterYourUsername\":\"Enter your username\",\"enterPassword\":\"Enter password\",\"name\":\"Name\",\"save\":\"Save\",\"reset\":\"Reset\",\"muteSounds\":\"Mute sounds\",\"textColor\":\"Text color\",\"uploadPicture\":\"Upload a picture\",\"attachFile\":\"Attach a file\",\"insertEmoticon\":\"Insert an emoticon\",\"messageInputTitle\":\"Use Shift+ENTER in order to move to the next line.\",\"deleteMessage\":\"Delete the message\",\"banThisUser\":\"Ban this user\",\"muteThisUser\":\"Mute this user\",\"reportSpam\":\"Report spam\",\"deleteConfirmation\":\"Are you sure you want to delete this message?\",\"banConfirmation\":\"Are you sure you want to ban this user?\",\"banConfirmed\":\"The user has been banned.\",\"muteConfirmation\":\"Are you sure you want to mute this user?\",\"muteConfirmed\":\"The user has been muted.\",\"spamReportConfirmation\":\"Are you sure you want to report the message as spam?\",\"spamReportConfirmed\":\"Thank you for reporting this.\",\"subChannelsSearchHint\":\"Search …\",\"savedSettings\":\"Settings have been saved.\",\"maximize\":\"Maximize\",\"minimize\":\"Minimize\",\"chatFull\":\"The chat is full now. Try again later.\",\"onlineUsers\":\"Online users\"}}],\"actions\":[],\"lastActionId\":17}"
2023-02-08 01:40:35 [debug] [engine.ajax.AjaxEngineMaintenance] [onMaintenanceRequestError] [errorThrown] {}
2023-02-08 01:40:35 [debug] [engine.ajax.AjaxEngineMaintenance] [onMaintenanceRequestError] [exception] "Unexpected token '<', \"
\n\"… is not valid JSON"
2023-02-08 01:40:35 [error] Maintenance fatal error: SyntaxError: Unexpected token '<', "
"… is not valid JSON