I understand that some times panel might not start or have other functionality issues.
Please, send me the report when you notice any issues with the panel, fix will be made ASAP.

Describe your problem with as many details as possible. What were the steps that you took? How often does the problem reproduce?

Note your Adobe Photoshop verison.
You can find it when you click "About Photopshop CC" button in Photoshop menu.

Note your operating system and it's version.
on MacOS: click on the Apple icon in the top-left cornder of the screen and click "About this Mac"
on Windows: refer to this article

Make a screenshot or video of the panel wrong behaviour.

Get main ARCPanel log.
It is located in your Documments folder and is called "arcpanel200.log", where last 3 numbers is ARCPanel version

Get additional logs.
on MacOS: ~/Library/Logs/CSXS/
on Windows: C:\Users\<Your User>\AppData\Local\Temp
Please get following files (number after PHXS should match your Adobe Photoshop version

• CEPHtmlEngine9-PHXS-20.0.2-right.apps.arcpanel.core.log
• CEPHtmlEngine9-PHXS-20.0.2-right.apps.arcpanel.core-renderer.log
• CEPHtmlEngine9-PHXS-20.0.2-right.apps.arcpanel.enhance.log
• CEPHtmlEngine9-PHXS-20.0.2-right.apps.arcpanel.enhance-renderer.log

Send everything to anton.averin.photo+arcpanel@gmail.com