You have a mod conflict. No we cannot tell you which one(s) might be at play.

I can and will give you some things to do - to help figure this out.

First - Do you have any DLC's? Dawnguard - Hearthfires - Dragonborn?

They >> MUST << be loaded in this order at the top:

Skyrim.esm
Update.esm
Dawnguard.esp
Hearthfires.esp
Dragonborn.esp

Again they MUST be in this very specific order.

2nd - ( this the pain in the butt part )

Un-check ALL your mods. DLC's are NOT mods. Leave those checked.

Now with any and all mods turned > OFF <

Play your game and use the M function for MAP. Do you CTD ( Crash To Desktop )??

If yes, ... well let me know, because well ... more involved game corruption is at play.

If NO ... ( which I hope is the case )

The turn ON the first MOD - Play and use M for Map.

Yes ? No ? to CTD.

IF yes - then turn that specific MOD > OFF < again and turn on the next one and repeat until you have all the mods turned on that did NOT cause the M - CTD.

NOTE: There could be more than 1 mod at play and you might find you have 2 or more turned off. Do not be surprised if this is the case, but also do not be surprised if it's not the case. . o O ( just saying )

Then go to the Specific Mod Forum and READ the Description Page - Bug Reports and Posts in the forum. Let the creator know as they may not be aware. Let them know specifically what you did to 'get to this answer'.

thank you for that. my game is now successfully working i can now offically open my map by pressing M with out it CTD