I was a little sleeping, so I got late.
As a quick way to solve the problem, uninstall the following patch.
DSFE Growths(Total growth = character growth + class growth)
Your ROM is corrupting the stack in the function for the growth rate.
The push / pop relationship of the stack has been broken.
Therefore, I searched for patches that you are using with a patch seeking growth rate.
So I found this DSFE Growths.
Uninstalling this patch resolves the problem.
However, in general, DSFE Growths works properly if it is standalone.
I think that it competes with any other patches.
I have to investigate more which competing with other patches.
Also, to turn off the FELint warnings, please do the following.
Set the attack range of 0xD1 Requiem to 1-1.
(If you want to change 0xD1 Requiem to 1-2 please set motion 0xD1 Requiem to a class that can use axes.)
Also, the brigand class is not enough to designate ax.
Please add Tomahawk and Hatchet.
With these two fixes, all warnings disappear.