I have the above error being caused by a related posts plugin. This has just started happening after updating trellis, reprovisioning the server and deploying. (everything was fine before).
the line that is throwing the error:
$string = utf8_encode( $string );
From looking around a few posts is seems that there are missing php extensions. mb_string(?)
This might be more a general php question, but how do I go about checking/ installing the missing extension(s)( if that is indeed the issue) in trellis?
(I'm looking in roles/php/templates/php.ini.j2 ?)
any pointers much appreciated!