I think you can just restart n8n server (at the same version you had it running before, ideally), maybe you need to get a server with more RAM if you have such a big database. My database is just below 10MB.
You can try these to see what’s inside your DB:
$ sqlite3 database.sqlite
sqlite> .mode line
sqlite> select name, nodes, connections from workflow_entity limit 3;
This will show nodes and their connections (for 3 workflows). That’s the structure of a workflow as I understand it:
{
"meta": {
"instanceId": "xyz"
},
"nodes": %nodes%,
"connections": %connections%
}
But I think it will be better for you just to get the docker container running again. See VACUUM does nothing for the file size of database.sqlite? - #10 by krynble as well. But more importantly, look at the logs.