"Thanks" clicks not working after vB Upgrade (3.8.11) and PHP upgrade (to 7.1)
Upgraded PHP to 5.6 on the forums, and the forum software to vB 3.8.11 (beta). I also went ahead and upgraded the "Thanks" addon to 3.6.3. The upgrade itself crashed due to a modification of the dbtech_thanks_entrycache table (which is about 11GB on our forum), but after manually modifying the column, the update completed.
Somehow, somewhere, however click on the "like" button (we have a single button to "like" a post) now produces no actual "like". Also the "likes" under a user's name disappear when it is clicked (the button briefly disappears and reappears too)
BEFORE CLICKING:
AFTER CLICKING:
(red circle is where it should say "X liked this post"
I receive no PHP errors or warnings when the button is clicked, either. (Unless warnings are disabled in the addon, I haven't dug into the code too much).
The same thing happens in all locations on the forum where the thanks addon is enabled (visitor messages, social groups, etc)
Thanks in advance for any help you can provide.
Upgraded PHP to 5.6 on the forums, and the forum software to vB 3.8.11 (beta). I also went ahead and upgraded the "Thanks" addon to 3.6.3. The upgrade itself crashed due to a modification of the dbtech_thanks_entrycache table (which is about 11GB on our forum), but after manually modifying the column, the update completed.
Somehow, somewhere, however click on the "like" button (we have a single button to "like" a post) now produces no actual "like". Also the "likes" under a user's name disappear when it is clicked (the button briefly disappears and reappears too)
BEFORE CLICKING:

AFTER CLICKING:
(red circle is where it should say "X liked this post"

I receive no PHP errors or warnings when the button is clicked, either. (Unless warnings are disabled in the addon, I haven't dug into the code too much).
The same thing happens in all locations on the forum where the thanks addon is enabled (visitor messages, social groups, etc)
Thanks in advance for any help you can provide.