You appear to understand the process. Build a work directory someplace with res_mods/XVM/configs/Aslain and place files in that location. Go back to the directory containing res_mods and send res_mods to a compressed file by right clicking res_mods and picking that action. Put the resulting zip in the custom mods dir.
The red credit total means your credit card has been rejected. Your ammo request is more than your balance. You want 54k of ammo but have 7k in credit.
Autoaim indicator has been flagged by others and may be Lemming's issue. I haven't seen a log from your incidents so I can't tell if your problem is related to Lemming's.
I'd also need to see xvm.log to see it that is assisting in the crash as it has been a contributor in the past.
[NOTE] (res_mods\0.9.4\scripts\client\mods\autoaim_indicator.py, 39): entering battle
[NOTE] (res_mods\0.9.4\scripts\client\mods\autoaim_indicator.py, 39): new target acquired at 0.291730 degrees
[NOTE] (res_mods\0.9.4\scripts\client\mods\autoaim_indicator.py, 39): new target acquired at 0.470300 degrees
From your log
best way to troubleshoot this is to remove all the mods and add them back one at a time to identify the conflict. I have a suspect in mind since it appears to be throwing all the errors.
No -- it mount before battle and demounts after. Means you only need 2 camo nets and binocs to cover all your battles rather than having to buy them for each tank.
This is the version that sets the gear statically. It does not need to learn what you want so you need to edit the autotelescope.xml to set you preferences by class (SPG, AT, medium, heavy, light)