Send me your error logs in Documents\Paradox Interactive\Hearts of Iron IV\logs\error.log

alright i found the error log but it seems missing the error in question im going to re-create the issue and send you the error log then

so before i got a recreated error message that had the game crashed my error log had this

[02:33:58][1961.09.17.21][persistent.cpp:68]: Error: "Amount of days needs to be greater than zero: }, near line: 0" in file: "save games/GERman cc 36.hoi4" near line: 0
[02:33:59][1961.09.17.21][production.cpp:2579]: Skipped adding equipment "M1 Thompson" to LIT as it's conflicting with existing equipment "Infantry Equipment II" (infantry_equipment_2, version 0, creator LIT)
[02:39:07][1961.09.17.21][graphics.cpp:1288]: No font with name
[02:47:16][1961.09.17.22][containerwindow.cpp:1025]: interface/operationoverview.gui (line 508 ): Could not find "portrait_dismiss_btn" in window operation_operative_leader_portrait_window
[02:47:16][1961.09.17.22][containerwindow.cpp:1025]: interface/operationoverview.gui (line 508 ): Could not find "portrait_dismiss_btn" in window operation_operative_leader_portrait_window
[03:01:05][1961.09.22.14][graphics.cpp:1371]: Failed to create gui object. Could not find sprite type [GFX_navalcombat_air_icon_fighter_equipment]
[03:01:07][1961.09.22.22][graphics.cpp:1371]: Failed to create gui object. Could not find sprite type [GFX_navalcombat_air_icon_fighter_equipment]
[03:33:57][1961.10.12.04][effectimplementation.cpp:23912]: common/scripted_effects/TOA_scripted_effects.txt:1284: send_embargo: cant have a relation to yourself
[03:39:54][1961.10.14.01][effectimplementation.cpp:23959]: common/on_actions/10_toa_on_actions.txt:20: break_embargo: can't have a relation to yourself
[05:34:48][1961.10.20.15][bitmapfont.cpp:1356]: Couldnt find texticon: unit_airborne_light_armor_icon_small|1
[05:42:19][1961.11.01.01][bitmapfont.cpp:1356]: Couldnt find texticon: unit_airborne_light_armor_icon_small|1

and i couldn't figure what was the problem that crashed it unless its a different one each time. So i cleared the error log after getting a copy of it and tried re-creating it i had to play it create a save with the mod active and then leave the game entirely now it would not crash until either after the computer was left idle without the game running for several hours then launched the game and loaded the created save or as this re-creation happened restarted my computer launched the game and then loaded the created save both of which crashed as it was selected and yes both times mod is active.

re-created incident log shows this:
[00:49:52][1961.06.10.21][production.cpp:2579]: Skipped adding equipment "M1 Thompson" to LIT as it's conflicting with existing equipment "Infantry Equipment II" (infantry_equipment_2, version 0, creator LIT)

There doesn't seem to be anything related to the mod in these logs, maybe try validating Hoi4's files

already did files were validated well before contacting you and yeah i confirmed it only happens when your mod is active is it possible that your mod is messing with a couple of the games item files cause i noticed one of the the files listed was a file for a tier 2 infantry weaponry for a separate nation while another one of the files was for the airborne's para-drop light tanks.

This happens with the Landlord version as well

are you telling me or are you asking if I encountered the same error with the Landlord mod myself?