Octoprint Version 1.6.1 (raspberry pi 3b) enters safemode after install Astro-print plugin

[ProTheus-LB]

Octoprint Version 1.6.1 (raspberry pi 3b)
After installing the plugin, I'm unable to start Octoprint without disable it or uninstall it, the server enters safemode after install Astroprint plugin.

[jaymcd]

I am having same issue with 1.7

[foscoj]

Same issue over here