Mastodon - 500 Internal Server Error

Hello, Mastodon basic is fully operational then simply stops (error messages below) then it works again. Can you please review and suggest possible solutions or causes. Thanks, all the best D.

XHRGEThttps://dorijan.io/api/v1/timelines/home [HTTP/2 500 Internal Server Error 5839ms]

GETwss://dorijan.io/api/v1/streaming/?stream=user [HTTP/1.1 502 Bad Gateway 2976ms]

XHRGEThttps://dorijan.io/api/v1/timelines/home [HTTP/2 500 Internal Server Error 6553ms]

XHRGEThttps://dorijan.io/api/v1/notifications?exclude_types[]=follow_request [HTTP/2 500 Internal Server Error 6524ms]

XHRGEThttps://dorijan.io/api/v1/suggestions [HTTP/2 500 Internal Server Error 7823ms]

XHRGEThttps://dorijan.io/api/v1/trends [HTTP/2 500 Internal Server Error 6400ms]

XHRGEThttps://dorijan.io/api/v1/follow_requests [HTTP/2 500 Internal Server Error 7717ms]

XHRGEThttps://dorijan.io/api/v1/announcements [HTTP/2 500 Internal Server Error 6369ms]

XHRGEThttps://dorijan.io/api/v1/filters [HTTP/2 500 Internal Server Error 5970ms]

XHRPOSThttps://dorijan.io/api/web/push_subscriptions [HTTP/2 500 Internal Server Error 6052ms]

Firefox can’t establish a connection to the server at wss://dorijan.io/api/v1/streaming/?stream=user. emoji_picker_dropdown.js:85:59 GETwss://dorijan.io/api/v1/streaming/?stream=user [HTTP/1.1 502 Bad Gateway 2164ms]

Firefox can’t establish a connection to the server at wss://dorijan.io/api/v1/streaming/?stream=user. emoji_picker_dropdown.js:85:59 GETwss://dorijan.io/api/v1/streaming/?stream=user [HTTP/1.1 502 Bad Gateway 276ms]

Firefox can’t establish a connection to the server at wss://dorijan.io/api/v1/streaming/?stream=user. emoji_picker_dropdown.js:85:59 GETwss://dorijan.io/api/v1/streaming/?stream=user [HTTP/1.1 502 Bad Gateway 265ms]

Firefox can’t establish a connection to the server at wss://dorijan.io/api/v1/streaming/?stream=user. emoji_picker_dropdown.js:85:59 GETwss://dorijan.io/api/v1/streaming/?stream=user [HTTP/1.1 502 Bad Gateway 282ms]

Firefox can’t establish a connection to the server at wss://dorijan.io/api/v1/streaming/?stream=user. emoji_picker_dropdown.js:85:59 XHRGEThttps://dorijan.io/api/v1/timelines/home [HTTP/2 500 Internal Server Error 601ms]

XHRGEThttps://dorijan.io/api/v1/notifications?exclude_types[]=follow_request [HTTP/2 500 Internal Server Error 694ms]

GETwss://dorijan.io/api/v1/streaming/?stream=user [HTTP/1.1 502 Bad Gateway 292ms]

XHRGEThttps://dorijan.io/api/v1/announcements [HTTP/2 500 Internal Server Error 687ms]

Firefox can’t establish a connection to the server at wss://dorijan.io/api/v1/streaming/?stream=user. emoji_picker_dropdown.js:85:59 GETwss://dorijan.io/api/v1/streaming/?stream=user [HTTP/1.1 502 Bad Gateway 349ms]

Firefox can’t establish a connection to the server at wss://dorijan.io/api/v1/streaming/?stream=user. emoji_picker_dropdown.js:85:59 GETwss://dorijan.io/api/v1/streaming/?stream=user [HTTP/1.1 502 Bad Gateway 249ms]

Firefox can’t establish a connection to the server at wss://dorijan.io/api/v1/streaming/?stream=user. emoji_picker_dropdown.js:85:59 GETwss://dorijan.io/api/v1/streaming/?stream=user [HTTP/1.1 502 Bad Gateway 452ms]

Firefox can’t establish a connection to the server at wss://dorijan.io/api/v1/streaming/?stream=user. emoji_picker_dropdown.js:85:59 XHRGEThttps://dorijan.io/api/v1/timelines/home [HTTP/2 500 Internal Server Error 1293ms]

XHRGEThttps://dorijan.io/api/v1/notifications?exclude_types[]=follow_request [HTTP/2 500 Internal Server Error 1210ms]

XHRGEThttps://dorijan.io/api/v1/announcements [HTTP/2 500 Internal Server Error 2908ms]

GETwss://dorijan.io/api/v1/streaming/?stream=user [HTTP/1.1 502 Bad Gateway 764ms]

Firefox can’t establish a connection to the server at wss://dorijan.io/api/v1/streaming/?stream=user. emoji_picker_dropdown.js:85:59 XHRGEThttps://dorijan.io/api/v1/accounts/relationships?id[]=1 [HTTP/2 500 Internal Server Error 3609ms]

XHRGEThttps://dorijan.io/api/v1/accounts/1/identity_proofs [HTTP/2 500 Internal Server Error 3861ms]

XHRGEThttps://dorijan.io/api/v1/accounts/1/statuses?pinned=true [HTTP/2 500 Internal Server Error 3181ms]

XHRGEThttps://dorijan.io/api/v1/accounts/1/statuses?exclude_replies=true [HTTP/2 500 Internal Server Error 3967ms]

Uncaught (in promise) TypeError: e is undefined f alerts.js:38 Jt errors.js:11 Jt loading_bar.js:23 Redux 2 s identity_proofs.js:12 promise callbacks/< identity_proofs.js:12 a Redux componentWillMount index.js:54 React 13 setState index.js:3 n bundle.js:79 promise callbackn/< bundle.js:77 componentWillMount bundle.js:37 React 29 setState index.js:3 n bundle.js:79 promise callbackn/< bundle.js:77 componentWillMount bundle.js:37 React 12 default main.js:24 r ready.js:5 default main.js:20 505 application.js:7 promise callback505 application.js:6 Webpack 4 alerts.js:38:6 XHRGEThttps://dorijan.io/api/v1/timelines/home [HTTP/2 500 Internal Server Error 1599ms]

XHRGEThttps://dorijan.io/api/v1/notifications?exclude_types[]=follow_request [HTTP/2 500 Internal Server Error 2153ms]

XHRGEThttps://dorijan.io/api/v1/announcements [HTTP/2 500 Internal Server Error 6670ms]

XHRGEThttps://dorijan.io/api/v1/timelines/home [HTTP/2 500 Internal Server Error 6508ms]

XHRGEThttps://dorijan.io/api/v1/notifications?exclude_types[]=follow_request [HTTP/2 500 Internal Server Error 8932ms]

XHRGEThttps://dorijan.io/api/v1/announcements [HTTP/2 500 Internal Server Error 27375ms]

GETwss://dorijan.io/api/v1/streaming/?stream=user [HTTP/1.1 502 Bad Gateway 6303ms]

Firefox can’t establish a connection to the server at wss://dorijan.io/api/v1/streaming/?stream=user. emoji_picker_dropdown.js:85:59 XHRGEThttps://dorijan.io/api/v1/timelines/home [HTTP/2 502 Bad Gateway 27200ms]