Not receiving alerts for reactions?

[dark_night]

hi everyone, not really sure what has happened, but it seems my forum is not receiving any alerts from reactions on posts.

tried searching all over for what it could be but havent been able to find anything, does anyone here have any idea on what it could be or what i can check? alerts in general seem to be working fine, but for reactions they arent. happening to all users

thanks

 

[DareSec]

see error logs in ADMIN CP