Andy, Version 5.1.3 .. while in the Administrator role I just composed a “QUOTE” to a post and received this Fatal Error.
Fatal error: Call to undefined function sp_filter_email_content() in /data/0/0/23/9/23824/user/24314/problem-with-post-edit-buttontdocs/exploristX10/wp-content/sp-resources/forum-plugins/subscriptions/library/sp-subscriptions-components.php on line 224
The post was published but the error was scary.
P.S. Subscribers cannot add replies or Quotes to existing Messages. The submit field is absent.
Also subscribe option is missing… message states member is already subscribed when this is not true.
Is that a recent update to the subscriptions plugin? Am investigating…
Ah – you need to upgrade to SP 5.1.4
As a rule it is always the best practice to upgrade core when available before upgrading plugins…!