LazerGun4

I tried disabling the .esp, since there's no quest to obtain the item, but, again, the game crashed on start-up. As for the "mod index", if I read it on Wrye Bash, would I be able to use those first two numbers to replace the first two that I was using prior? If that doesn't work, would loading up all of my other plugins along with the plugin that I lost the item from work? I mean I could put in all of my other plugins in order before the .esp that I lost the item from and then put the mod last, which is where I would put it in my real load order (last). Would the first two numbers of the FormID line up then and work with the "additem" command? Because I'm cautious with existing mods (don't want to accidentally make a game-breaker and then spend more time fixing it then I did making it). And I really appreciate the help!

I have a mod called "Klarre Forestheart", which adds a set of light armor, a sabre, a dagger, a bow, arrows, and a cape to the game. I lost the sabre (named "Forestheart Branch") to a glitch (it fell through the game world to the bottom of the cell) and I can't get it back. I can't "player.additem" to my inventory for some reason, even though I already found the formID in TESCS. I tried "tcl" to go to the bottom of the cell, but the sabre disappears when I'm down there, even though the yellow exclamation bubble appears when I try removing the mesh to find the sabre. I tried adding another copy of it to the NPC who initially sells it, but the .esp I made crashed the game on loading. Any suggestions?