Exception while running the preverify step

I’m using proguard to obfuscate a jar for a desktop application.
I face the following issue:

Any idea please & thank you

Can someone help please, it is very urgent
Thank you

Hi @Amira,

I noticed we were able to assist with several other questions, however, given summer holiday coverage and commitments to supporting our paid solutions, the ProGuard support engineers likely won’t be available for further assistance this week.

Apologies for any inconvenience this may have caused,

Thank you Jesse,
I will wait for their answers next week
Thank you