Won’t submit with image attached

Submissions won’t go through if there is an attachment. It doesn’t matter what site the file is – it just spins. Here is an error file I am getting when trying to send with an image.
<span style=”color: rgb(0, 40, 56); font-family: "Open Sans", Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;”>PHP Fatal error: Uncaught Error: Call to private method WPCF7_Submission::add_uploaded_file() from context ” in /nas/content/live/autotruck2/wp-content/plugins/multifile-upload-field-for-contact-form-7/multifile-for-contact-form-7.php:249#012Stack trace:#012#0 /nas/content/live/autotruck2/wp-includes/class-wp-hook.php(310): wpcf7_multifile_validation_filter(Object(WPCF7_Validation), Object(WPCF7_Shortcode))#012#1 /nas/content/live/autotruck2/wp-includes/plugin.php(205): WP_Hook->apply_filters(Object(WPCF7_Validation), Array)#012#2 /nas/content/live/autotruck2/wp-content/plugins/contact-form-7/includes/submission.php(635): apply_filters(‘wpcf7_validate_…’, Object(WPCF7_Validation), Object(WPCF7_FormTag))#012#3 /nas/content/live/autotruck2/wp-content/plugins/contact-form-7/includes/submission.php(82): WPCF7_Submission->validate()#012#4 [internal function]: WPCF7_Submission->{closure}()#012#5 /nas/content/live/autotruck2/wp-content/plugins/contact-form-7/includes/l10n.php(147): call_user_func(Object(Closure))#012#6 /nas/content/live/autotruck2/wp-co in /nas/content/live/autotruck2/wp-content/plugins/multifile-upload-field-for-contact-form-7/multifile-for-contact-form-7.php on line 249</span>

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