🇻🇪Venezuela @oemb29

I added the line Worked but displays this issue:

Warning: array_flip(): Can only flip STRING and INTEGER values! in DrupalDefaultEntityController->load() (line 175 of /home/xx/public_html/x/includes/entity.inc).
Warning: array_flip(): Can only flip STRING and INTEGER values! in DrupalDefaultEntityController->cacheGet() (line 388 of /home/xx/public_html/x/includes/entity.inc).
Notice: Trying to get property of non-object in unsubscribe_user_check() (line 331 of /home/xx/public_html/x/sites/all/modules/unsubscribe/unsubscribe.module).