Error 500 edit posts on 1.8.2 Docker

[NightSommelier]

Describe the bug
When I edit posts, I get a 500 error.

Which Mbin version was running on the instance?
1.8.2 / Docker

Additional context

{"message":"Uncaught PHP Exception TypeError: \"spl_object_id(): Argument #1 ($object) must be of ty
pe object, string given\" at UnitOfWork.php line 1833","context":{"exception":{"class":"TypeError","
message":"spl_object_id(): Argument #1 ($object) must be of type object, string given","code":0,"fil
e":"/app/vendor/doctrine/orm/src/UnitOfWork.php:1833"}},"level":500,"level_name":"CRITICAL","channel
":"request","datetime":"2025-07-01T17:02:36.835334+00:00","extra":{}}

[BentiGorlich]

Hi there, which post were you editing, is there a more elaborate error message? The one you added only contains an exception in some framework code without the stacktrace, so there is not telling in which part of the mbin code cause this

[NightSommelier]

Hi there, which post were you editing, is there a more elaborate error message? The one you added only contains an exception in some framework code without the stacktrace, so there is not telling in which part of the mbin code cause this

Reverse Proxy works to: Traefik -> Caddy (in Docker)
in local network.

php-1  | {"message":"Uncaught PHP Exception TypeError: \"spl_object_id(): Argument #1 ($object) must be of type object, string given\" at UnitOfWork.php line 1833","context":{"exception":{"class":"TypeError","message":"spl_object_id(): Argument #1 ($object) must be of type object, string given","code":0,"file":"/app/vendor/doctrine/orm/src/UnitOfWork.php:1833"}},"level":500,"level_name":"CRITICAL","channel":"request","datetime":"2025-07-02T11:46:33.769506+00:00","extra":{}}
php-1  | {"level":"error","ts":1751456793.8005362,"logger":"http.log.access.log0","msg":"handled request","request":{"remote_ip":"x.x.x.x","remote_port":"44720","client_ip":"x.x.x.x","proto":"HTTP/1.1","method":"POST","host":"domain.local","uri":"/m/ublog/t/4/example-thread/edit","headers":{"X-Real-Ip":["x.x.x.x"],"X-Forwarded-Server":["local-server.home"],"Content-Type":["multipart/form-data; boundary=----geckoformboundaryd473213eccc08b2a7a9359b9a4eee3a8"],"Origin":["https://domain.local"],"Content-Length":["1744"],"Accept-Language":["en-US"],"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"],"Dnt":["1"],"User-Agent":["Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:139.0) Gecko/20100101 Firefox/139.0"],"Referer":["https://domain.local/m/ublog/t/4/example-thread/edit"],"X-Forwarded-Host":["domain.local"],"Sec-Fetch-Site":["same-origin"],"Sec-Fetch-Dest":["document"],"Sec-Fetch-Mode":["navigate"],"Sec-Fetch-User":["?1"],"X-Forwarded-For":["x.x.x.x"],"X-Forwarded-Port":["443"],"Priority":["u=0, i"],"Sec-Gpc":["1"],"Accept-Encoding":["gzip, deflate, br, zstd"],"X-Forwarded-Proto":["https"],"Te":["trailers"],"Upgrade-Insecure-Requests":["1"],"Cookie":["REDACTED"]}},"bytes_read":1744,"user_id":"","duration":0.061551772,"size":10547,"status":500,"resp_headers":{"Cache-Control":["max-age=0, must-revalidate, private"],"Date":["Wed, 02 Jul 2025 11:46:33 GMT"],"Expires":["Wed, 02 Jul 2025 11:46:33 GMT"],"Content-Encoding":["zstd"],"Server":["Caddy"],"Vary":["Accept","Accept-Encoding"],"Content-Type":["text/html; charset=UTF-8"]}}
php-1  | {"level":"info","ts":1751456794.0114312,"logger":"http.log.access.log0","msg":"handled request","request":{"remote_ip":"x.x.x.x","remote_port":"44736","client_ip":"x.x.x.x","proto":"HTTP/1.1","method":"GET","host":"domain.local","uri":"/media/cache/resolve/avatar_thumb/10/37/10374d500aa1e3be42a4602bd1919be4354ba28849a7632f819fa124cda259f0.jpg","headers":{"User-Agent":["Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:139.0) Gecko/20100101 Firefox/139.0"],"Accept":["image/avif,image/webp,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5"],"Accept-Language":["en-US"],"Priority":["u=5, i"],"Sec-Fetch-Mode":["no-cors"],"Cookie":["REDACTED"],"X-Forwarded-For":["x.x.x.x"],"Sec-Gpc":["1"],"Te":["trailers"],"X-Forwarded-Proto":["https"],"X-Forwarded-Server":["local-server.home"],"Dnt":["1"],"Referer":["https://domain.local/m/ublog/t/4/example-thread/edit"],"X-Forwarded-Host":["domain.local"],"X-Forwarded-Port":["443"],"Accept-Encoding":["gzip, deflate, br, zstd"],"X-Real-Ip":["x.x.x.x"],"Sec-Fetch-Dest":["image"],"Sec-Fetch-Site":["same-origin"]}},"bytes_read":0,"user_id":"","duration":0.001413166,"size":285,"status":301,"resp_headers":{"Server":["Caddy"],"Date":["Wed, 02 Jul 2025 11:46:34 GMT"],"Location":["https://domain.local/media/cache/avatar_thumb/10/37/10374d500aa1e3be42a4602bd1919be4354ba28849a7632f819fa124cda259f0.jpg.webp"],"Content-Type":["text/html; charset=utf-8"],"Content-Encoding":["zstd"],"Vary":["Accept-Encoding"]}}

[BentiGorlich]

@NightSommelier if you are still experiencing this, could you modify the monolog config in <mbin-repo>/config/packages/monolog.yaml to include this:

when@prod:
    monolog:
        handlers:
            main:
                include_stacktraces: true

(you just have to add the include_stacktraces: true line in the main handler)

Then we could nail down the error and where it actually occurrs.

Additionally: could you check whether the problem still occurrs if you are on the latest commit on the main branch?