Enabling pluggin causes Flarum to Crash

[Matt-Lan]

Bug Report

Current Behavior Pluggin was working fine in beta, however after upgrading flarum + plugin to latest version (1.04) i'm presented with a blank white page where my forum used to be - the admin dashboard still works, so I am able to disable the plugging, after which the forum/threads etc are all visable again.

Steps to Reproduce

1. enable plugin in 1.04
2. Click on main forum home page
3. see blank page

Expected Behavior see forum page

Screenshots If applicable, add screenshots to help explain your problem.

Environment

• Flarum version: stable 1.04
• Extension version: stable 1.04
• Webserver: apache
• Hosting environment: [vps]
• PHP version: 7.3.28
• Browser: [chrome 67, safari 11]

Output of "php flarum info", run this in terminal in your Flarum directory.
Flarum core 1.0.4
PHP version: 7.3.28
Loaded extensions: Core, date, libxml, openssl, pcre, zlib, filter, hash, pcntl, readline, Reflection, SPL, session, standard, bz2, calendar, ctype, curl, dom, mbstring, fileinfo, ftp, gd, gettext, iconv, intl, json, exif, mysqlnd, PDO, Phar, posix, shmop, SimpleXML, sockets, sqlite3, sysvmsg, sysvsem, sysvshm, tokenizer, xml, xmlwriter, xsl, mysqli, pdo_mysql, pdo_sqlite, wddx, xmlreader, zip, mysql
+----------------------+--------------+--------+
| Flarum Extensions    |              |        |
+----------------------+--------------+--------+
| ID                   | Version      | Commit |
+----------------------+--------------+--------+
| flarum-tags          | v1.0.3       |        |
| flarum-flags         | v1.0.0       |        |
| flarum-suspend       | v1.0.0       |        |
| fof-formatting       | 1.0.0        |        |
| fof-byobu            | 1.0.0-beta.7 |        |
| flarum-emoji         | v1.0.0       |        |
| fof-user-directory   | 1.0.2        |        |
| flarum-lock          | v1.0.0       |        |
| flarum-statistics    | v1.0.0       |        |
| flarum-subscriptions | v1.0.0       |        |
| flarum-lang-english  | v1.0.0       |        |
| flarum-sticky        | v1.0.0       |        |
| flarum-mentions      | v1.0.0       |        |
| flarum-markdown      | v1.0.1       |        |
| fof-recaptcha        | 1.0.0        |        |
| fof-polls            | 1.0.3        |        |
| flarum-bbcode        | v1.0.0       |        |
+----------------------+--------------+--------+

**Possible solution(s)**
<!--- Only if you have suggestions or a fix for the bug -->

**Additional Context**
Java console output just shows "500 - Internal Server Error.