BUG - Unable to start Collabora on Mattermost 5.37

[DHaussermann]

Summary

When I attempt to start the plugin on Mattermost V5.37 it crashes.

note This did not occur for me on V6.0
This issue seems very similar to #40 but my error is different in a way that may be meaningful so, I wrote up a separate issue.

Steps To Reproduce

Steps to reproduce the behavior:

1. Deploy a Mattermost server v5.37
2. Download Collabora v1.1.0 from the releases page
3. Upload and configure the plugiin
4. Enable the plugin

Observed Behavior (that appears unintentional)

Plugin crashes with {"level":"error","ts":1634931209.394687,"caller":"mlog/log.go:251","msg":"Unable to activate plugin","plugin_id":"com.collaboraonline.mattermost","error":"unable to start plugin: com.collaboraonline.mattermost: Unrecognized remote plugin message: \n\nThis usually means that the plugin is either invalid or simply\nneeds to be recompiled to support the latest protocol.","errorVerbose":"Unrecognized remote plugin message: \n\nThis usually means that the plugin is either invalid or simply\nneeds to be recompiled to support the latest protocol.\nunable to start plugin: com.collaboraonline.mattermost\ngithub.com/mattermost/mattermost-server/v5/plugin.(*Environment).Activate\n\tgithub.com/mattermost/mattermost-server/v5/plugin/environment.go:274\ngithub.com/mattermost/mattermost-server/v5/app.(*Server).syncPluginsActiveState.func2\n\tgithub.com/mattermost/mattermost-server/v5/app/plugin.go:144\nruntime.goexit\n\truntime/asm_amd64.s:1371"}

Environment

• Mattermost version: e.g. 5.37.2