I successfully installed nodebb a week ago and it has been working well. However, I just found an error while looking at the log file.
This seems to be a database related error. The database I use is mongodb.
The following is the output:

2022-02-03T04:23:26.872Z [4567/1383602] - error: GET /topic/53/windows%E4%B8%8B%E5%AE%89%E8%A3%85mysql8
TypeError: Cannot read properties of undefined (reading 'length')
at /home/ubuntu/app/NodeBB/src/database/index.js:17:24
at Array.forEach (<anonymous>)
at Object.primaryDB.parseIntFields (/home/ubuntu/app/NodeBB/src/database/index.js:16:12)
at /home/ubuntu/app/NodeBB/src/user/data.js:184:7
at Array.map (<anonymous>)
at modifyUserData (/home/ubuntu/app/NodeBB/src/user/data.js:179:27)
at User.getUsersFields (/home/ubuntu/app/NodeBB/src/user/data.js:82:9)
at processTicksAndRejections (node:internal/process/task_queues:96:5)
at async User.getUsersData (/home/ubuntu/app/NodeBB/src/user/data.js:145:10)
at async User.getUserData (/home/ubuntu/app/NodeBB/src/user/data.js:140:17)
(node:1383602) PromiseRejectionHandledWarning: Promise rejection was handled asynchronously (rejection id: 2)
(Use node --trace-warnings ... to show where the warning was created)
2022-02-03T04:23:26.876Z [4567/1383602] - warn: [plugins] filter:user.whitelistFields already resolved in plugin nodebb-plugin-sso-beer-qq
2022-02-03T04:23:26.876Z [4567/1383602] - info: [app] Live analytics saved.
2022-02-03T04:23:26.881Z [4567/1383602] - error: uncaughtException: Cannot read properties of undefined (reading 'length')
TypeError: Cannot read properties of undefined (reading 'length')
at /home/ubuntu/app/NodeBB/src/database/index.js:17:24
at Array.forEach (<anonymous>)
at Object.primaryDB.parseIntFields (/home/ubuntu/app/NodeBB/src/database/index.js:16:12)
at /home/ubuntu/app/NodeBB/src/user/data.js:184:7
at Array.map (<anonymous>)
at modifyUserData (/home/ubuntu/app/NodeBB/src/user/data.js:179:27)
at User.getUsersFields (/home/ubuntu/app/NodeBB/src/user/data.js:82:9)
at processTicksAndRejections (node:internal/process/task_queues:96:5)
at async User.getUsersData (/home/ubuntu/app/NodeBB/src/user/data.js:145:10)
at async User.getUserData (/home/ubuntu/app/NodeBB/src/user/data.js:140:17) {"date":"Thu Feb 03 2022 12:23:26 GMT+0800 (China Standard Time)","error":{},"exception":true,"os"

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