The Jobe server has constraints on resources like memory size, number of processes, output file size and CPU time. It looks like your task is hitting a resource limit, most likely memory (you're running Kotlin within Java within Python!) or num_processes. Start by setting the memory limit (in advanced customisation) to zero, then try setting a large value (say 1000) for numprocesses if that doesn't work. There's some discussion of similar problems here: https://coderunner.org.nz/mod/forum/discuss.php?d=177
Thanks! Increasing num_processes works.
> you're running Kotlin within Java within Python!
Yes, it looks like not optimal solution, but I didn't find another one