I got an error

[Andeet]

I am doing a stack of 201 images, very fine steps from Stackshot. Simple subject (a slime mold sporangium). After about 5 minues it stopped with a large red exclamation point, and says "Unknown Exception." I have had this before, but I don't remember the circumstances. I can find no occurrence of this error in the forum, or in searching in Google. Has anyone else experienced this and can tell me what is the problem and how can I fix it?tiny fishing

[Catherine]

Please send an error report after the error occurs (menu - Help - Contact support).