Package or activities install fails the first time the job is launched


I have an issue that appears randomly on my robots.
Every day I’ve some robots that are scheduled and they launch automatically in the morning.

But sometimes, without reason the first launch of a job, it fails and I’ve the error “Error on package installation” or “cannot create unknown type”. So, immediatly after that I launch the job manually and it works perfectly.

Can you help me to solve this issue? Have you seen this issue before?