need help with Sirenroot

[Seiku123]

so my game crashes at the start of the Sirenroot - Deluge of Deceit quest, when I touch the Sirenroot, the game goes into a loading screen and then suddenly it crashes. it has happened twice and the main page says nothing about a crash occuring like this, I will put my crashlog here in case anyone can read it and send me the solution. thank you

https://pastebin.com/ievYDhxc

[traison]

Touching the Sirenroot triggered an autosave, which caused (or revealed) an issue with the SKSE cosave. It may have had something to do with form id 0x0007326E of type Projectile, last modified by "Unmarked Locations Pack.esp". The crash happened in SKSE while writing or reading the cosave. Papyrus may have also been involved.

 

So perhaps if I had to guess what happened here was when you touched (activated) the Sirenroot it launched a projectile, and this projectile (or one of its effects) had a script attached to it which tried to store something in the SKSE cosave. However something in this process also triggered an autosave, perhaps you were supposed to get teleported somewhere. Something went wrong obviously. Perhaps a race condition in Papyrus and the autosave, or just a bug/limitation with SKSE and its cosave.