Thanks for your message and the report, just started to send answer
Yes, from the report, I see you already configured offset value of -18026 for the 10 Spin Retry Count attribute on the S.M.A.R.T. page in Hard Disk Sentinel.
However, the detected amount of spin up problems is higher than this value (18043 according the text description).
So it seems even if the offset used, the attribute constantly counts new such/similar problems.
Personally I suspect the issue may be really caused by a minor incompatibility: the combination of this controller and the hard disk itself.
The controller may has some special power management functions which result that the drive constantly records new problems (even if there should be no issues).
If possible, just for a test, I'd try to connect the drive to a completely different controller or try in an USB enclosure/docking station, just to verify the situation: check if the error counter changes or not there. This would confirm that previously the controller caused the increase.
If you prefer to completely ignore this warning and want to disable checking / interpreting this attribute, please locate this 10 Spin Retry Count attribute on the S.M.A.R.T. page in Hard Disk Sentinel and next to the Offset column, un-check the checkbox under the "Enable" column.
This way Hard Disk Sentinel will not use this attribute in health calculation and determining the text description too - so these would only show possible other issues (if there will be).