The script behind the check mark button is the "check for degraded faces" script. I can't tell what the last button does since i never used it before, but it spits out the same error for me. The annotation of it says "Crytek Control Panel" maybe it's some internal crytek stuff or it's a deprecated feature from earlier…
The first error can be solved by going in "Window - Settings/Preferences - Preferences" in the upcoming Window head to "Settings" and change the Time Dropbox under Working Units to NTSC 30fps. Kinda annoying since you have to do this every time. The second one comes from an empty group, it looks like your cylinder is not…