And here are the last crash logs if it can be of any help:
Plugin
This crash appears to have been caused by a plugin.
Relevant Line
0 com.apple.FxPlug.provider 0x000000011a296640 0x11a28b000 + 46656
And the next one is:
Corrupt Project
This crash seems to have been caused by a corrupt project file. You can attempt to repair the project with Project Repair, but you will most likely need to restore from a backup or autosave (note that the corruption may have spread to recent autosaves).
Relevant Line
13 com.apple.DeepSkyLite 0x0000000101958bf3 -[DSStore prefetchData:] + 437
and the next one:
Corrupt Project
Background exception: '*** -[NSKeyedUnarchiver initForReadingWithData:]: incomprehensible archive (0x62, 0x70, 0x6c, 0x69, 0x73, 0x74, 0x30, 0x30)' --> { (