Here's my error log: http://hastebin.com/aramizorux
And my flarum info: http://hastebin.com/zopegufaxe
Some (might be useful) contexts:
I recently upgraded the forum from beta.13 to the latest stable version. I have installed this extension a year or two earlier, back when flagrow was still a thing. I improperly removed it (without clicking "Uninstall" button). The reason was in my other post:
alexkuang0 I my stupid self used to think that it was because I was on beta version that the button "doesn't work". Since I didn't see intuitive feedbacks after I clicked the button, which, I consider, should be: the panel for the extension completely disappear after I "uninstall".
And I recently went through a migration from the beta.13 database to a fresh installation of the stable version, which should have dropped all the unused tables and columns, as described in that post as well:
alexkuang0 It caused a lot of trouble for my migration to a fresh installation of the stable version, since I did not "clear data" before I composer remove extensions and left a bunch of unused columns and tables in the database, which halts the SQL execution since they cannot find their corresponding place in the new database. But I managed to work around this after I found a StackOverFlow answer.
