Glyphs trial doesn't work


I downloded the trial version of Glyphs and already started working on a font. Everything was working fine, but suddenly Glyphs started to freeze everytime I tried to delete a character (o). After it freezed I always had to force quit the program. Now the program won’t even open, it freezes immediately and I have to force quit it always.

I have already tried to delete the trial version and install it again but it doesn’t work.

What could I do?

What version do you have?