Extension makes forum unable to load on a FreeFlarum forum (ref.).
Using Best Answer ver. 1.1.2
PHP Flarum Info:
Flarum core 1.0.4
PHP version: 8.0.9
Loaded extensions: Core, date, libxml, openssl, pcre, zlib, filter, hash, json, pcntl, Reflection, SPL, session, standard, sodium, mysqlnd, PDO, xml, calendar, ctype, curl, dom, mbstring, FFI, fileinfo, ftp, gd, gettext, gmp, iconv, intl, exif, mysqli, pdo_mysql, Phar, posix, readline, shmop, SimpleXML, sockets, sysvmsg, sysvsem, sysvshm, tokenizer, xmlreader, xmlwriter, xsl, Zend OPcache
+---------------------------------+--------------+--------+
| Flarum Extensions | | |
+---------------------------------+--------------+--------+
| ID | Version | Commit |
+---------------------------------+--------------+--------+
| flarum-flags | v1.0.0 | |
| flarum-approval | v1.0.0 | |
| flarum-tags | v1.0.3 | |
| flarum-suspend | v1.0.0 | |
| flarum-markdown | v1.0.1 | |
| v17development-seo | v1.8.0 | |
| fof-upload | 1.0.2 | |
| fof-socialprofile | 1.1.0 | |
| fof-share-social | 1.0.0 | |
| fof-nightmode | 1.0.0 | |
| fof-formatting | 1.0.0 | |
| fof-byobu | 1.0.0-beta.9 | |
| malago-achievements | 0.5.0 | |
| michaelbelgium-discussion-views | v7.0.0 | |
| matteocontrini-imgur-upload | v3.9.1 | |
| fof-user-bio | 1.0.0 | |
| fof-profile-image-crop | 1.0.0 | |
| fof-pages | 1.0.1 | |
| fof-discussion-thumbnail | 1.0.1 | |
| antoinefr-online | v1.0.1 | |
| migratetoflarum-canonical | 1.0.0 | |
| fof-default-user-preferences | 1.0.0 | |
| fof-sitemap | 1.0.0 | |
| flarum-subscriptions | v1.0.0 | |
| flarum-sticky | v1.0.0 | |
| flarum-statistics | v1.0.0 | |
| flarum-mentions | v1.0.0 | |
| flarum-lock | v1.0.0 | |
| flarum-likes | v1.0.0 | |
| flarum-lang-english | v1.0.0 | |
| flarum-emoji | v1.0.0 | |
| flarum-bbcode | v1.0.0 | |
| fof-polls | 1.0.3 | |
| fof-reactions | 1.0.0 | |
| fof-user-directory | 1.0.2 | |
| jslirola-login2seeplus | v0.2 | |
| fof-links | 1.0.0 | |
| therealsujitk-gifs | v4.1.0 | |
| fof-default-group | 1.0.0 | |
| fof-merge-discussions | 1.0.0 | |
| fof-oauth | 1.0.1 | |
| fof-spamblock | 1.0.0 | |
| fof-split | 1.0.0 | |
| sycho-profile-cover | v1.3.0 | |
| ianm-html-head | 1.0.0 | |
+---------------------------------+--------------+--------+
I suspected that this error was related to the Tags extension not being enabled, but enabling it and clearing cache & migrating DB didn't fix the issue.
No server-side logs. That's all that I know.