Same problem here with the permissions at ./checkpoints, it then writes second error that it cant write to log and crashes.
Also I noticed another weird thing - when i right click and do Run with graphical processor - Nvidia, it also says i do not have permissions for that and that i should do it in the nvidia app, which, in fact, does not list the app in recently used programs, its just not there.
EDIT:
Problem solved by manually deleting checkpoints folder and logfile. The previous rendering crashed because of memory, and left this folder and log here, without finished rendering, and probably somehow locked this folder / file unitl its finished? or so