Fix https://github.com/matrix-org/matrix-public-archive/issues/80
```
RethrownError: Unable to fetch rooms from room directory (homeserver=http://localhost:8008/)
searchTerm=, paginationToken=undefined, limit=9
at matrix-public-archive\server\routes\room-directory-routes.js:55:13
--- Original Error ---
Error: HTTP Error Response: 500 Internal Server Error: {"errcode":"M_UNKNOWN","error":"Internal server error"}
URL=http://localhost:8008/_matrix/client/v3/publicRooms?
at checkResponseStatus (matrix-public-archive\server\lib\fetch-endpoint.js:21:11)
at processTicksAndRejections (node:internal/process/task_queues:96:5)
at async fetchEndpoint (matrix-public-archive\server\lib\fetch-endpoint.js:38:3)
at async fetchEndpointAsJson (matrix-public-archive\server\lib\fetch-endpoint.js:63:15)
at async fetchPublicRooms (matrix-public-archive\server\lib\matrix-utils\fetch-public-rooms.js:26:26)
at async matrix-public-archive\server\tracing\trace-utilities.js:31:24
at async matrix-public-archive\server\routes\room-directory-routes.js:45:62
```