Hi Zilvinas, 
I am unable to replicate so cannot report.  It is intermittent, only happening after a week in some cases.  We think it might something to with the StringToDate primitive.  We have a solution now where we don't use this primitive which seems to be working.  
Is this automation done by HAL? 
- Yes
Did you have the same issue from the very beginning of using it? 
- The routine was created many years (and versions) ago.  Was running fine until we updated. 
What version of SERP is customer using?
- 2021-11-24