PHP Fatal Error

After updating to latest version, plugin stopped working and I’m getting this in the PHP log.

Please advise,
Thank,
Barak

2020/07/21 12:05:11 [error] 9943#0: *236650 FastCGI sent in stderr: “PHP message: PHP Fatal error: Uncaught Error: Class ‘Sgdg\Vendor\Google\Auth\Credentials\UserRefreshCredentials’ not found in /home/xfightin/domains/xfightingorg.com/public_html/wp-content/plugins/skaut-google-drive-gallery/bundled/vendor/google/apiclient/src/Google/Client.php:1214
Stack trace:
#0 /home/xfightin/domains/xfightingorg.com/public_html/wp-content/plugins/skaut-google-drive-gallery/bundled/vendor/google/apiclient/src/Google/Client.php(397): Sgdg\Vendor\Google_Client->createUserRefreshCredentials(‘https://www.goo…’, ‘1/ACz3-k8Gy0w8T…’)
#1 /home/xfightin/domains/xfightingorg.com/public_html/wp-content/plugins/skaut-google-drive-gallery/bundled/vendor/google/apiclient/src/Google/Client.php(856): Sgdg\Vendor\Google_Client->authorize()
#2 /home/xfightin/domains/xfightingorg.com/public_html/wp-content/plugins/skaut-google-drive-gallery/bundled/vendor/google/apiclient/src/Google/Service/Resource.php(234): Sgdg\Vendor\Google_Client->execute(Object(Sgdg\Vendor\GuzzleHttp\Psr7\Request), ‘\\” while reading upstream, client: 46.116.170.150, server: xfightingorg.com, request: “GET /galleries/instructors-training/ HTTP/1.1”, upstream: “fastcgi://unix:/usr/local/php73/sockets/xfightin.sock:”, host: “www.xfightingorg.com”, referrer: “https://www.xfightingorg.com/wp-admin/edit.php?post_type=galleries”