mattermost-plugin-github: Pull request review and Pull request review comments not working

Hi,

Pull request review and Pull request review comments not working for us. We have following error log on mattermost:

{"level":"warn","ts":1605265921.2438548,"caller":"mlog/sugar.go:27","msg":"Error webhook post","plugin_id":"github","error":"SqlPostStore.Save: İleti kaydedilemedi., pq: value too long for type character varying(26)"}

İleti kaydedilemedi means The message could not be saved

This error maybe not related to this plugin.

My environment:

Webhook payload: https://gist.github.com/ecylmz/183cabab78939dc8bc0403b9bb7419b9

GitHub Plugin: (github - 2.0.0)

Mattermost server:

Version: 5.26.0
Build Number: 5.26.2
Build Date: Fri Sep  4 02:04:34 UTC 2020
Build Hash: bed73717c54643abc1e2211e794d59a25b2cc823
Build Enterprise Ready: true
DB Version: 5.26.0

postgres (PostgreSQL) 12.4 (Debian 12.4-1.pgdg100+1)

What do you think could cause this error?

Thanks.