Unusually long time in queue while using I-TASSER

Dear I-TASSER team,

We ran two modeling jobs on I-TASSER ~three weeks ago (21.05.2020), but it seems that both are still in processing, while most of jobs submitted around that time, and also more recent ones, have already been processed.
Usually when we ran I-TASSER jobs, they were finished after 2-3 days, but, as my student reports, the unusually long waiting time happened to him as well during last 2 months.

Below are job IDs of current runs suffering from this problem:
S543353
S543200
Both of these are small proteins (~120aa) with provided template pdb (no alignment) and secondary structure assignment for 5 amino acids.
An another job that I ran recently, regarding much bigger protein (~650aa), finished with no issues, so I don't think that size of the protein is causing the problem.

What might be the cause of these long waiting times? Is it possible that there was an error on our side?

Best regards,
Igor