The theme seems to conflict with Flarum Approval at FreeFlarum:
PHP Flarum info:
Flarum core 1.0.4
PHP version: 8.0.8
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, 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-suspend | v1.0.0 | |
| flarum-sticky | v1.0.0 | |
| flarum-lock | v1.0.0 | |
| flarum-markdown | v1.0.1 | |
| fof-forum-statistics-widget | 1.0.0 | |
| fof-username-request | 1.0.0 | |
| sycho-profile-cover | v1.3.0 | |
| fof-user-bio | 1.0.0 | |
| fof-nightmode | 1.0.0 | |
| kilowhat-audit-free | 1.4.1 | |
| clarkwinkelmann-bookmarks | 1.0.0 | |
| katosdev-signature | 1.0.0 | |
| fof-profile-image-crop | 1.0.0 | |
| zerosonesfun-member | 0.2 | |
| clarkwinkelmann-emojionearea | 1.0.0 | |
| v17development-user-badges | v0.2.1 | |
| matteocontrini-imgur-upload | v3.9.1 | |
| fof-reactions | 1.0.0 | |
| fof-pages | 1.0.1 | |
| ianm-level-ranks | 1.0.0 | |
| fof-gamification | 1.0.0 | |
| fof-byobu | 1.0.0-beta.7 | |
| justoverclock-custom-header | 0.1.4 | |
| flarum-bbcode | v1.0.0 | |
| flarum-emoji | v1.0.0 | |
| flarum-lang-english | v1.0.0 | |
| flarum-mentions | v1.0.0 | |
| flarum-statistics | v1.0.0 | |
| flarum-subscriptions | v1.0.0 | |
| fof-sitemap | 1.0.0 | |
| fof-default-user-preferences | 1.0.0 | |
| migratetoflarum-canonical | 1.0.0 | |
| fof-drafts | 1.0.1 | |
| fof-ban-ips | 1.0.0 | |
| fof-polls | 1.0.3 | |
| ianm-synopsis | 1.0.0 | |
| kyrne-whisper | 0.1.3 | |
| fof-links | 1.0.0 | |
| fof-filter | 1.0.1 | |
| flarum-pusher | v1.0.0 | |
| fof-user-directory | 1.0.2 | |
| askvortsov-checklist | v1.3.1 | |
| fof-merge-discussions | 1.0.0 | |
| justoverclock-infocards | 0.1.5 | |
| fof-disposable-emails | 1.0.0 | |
+------------------------------+--------------+--------+