how to change runtime?

[TheMoon401]

deleted my load order because half of the patches, quests, and utility mods would straight up ctd. Once I got the game able to run half the mods in game did not work or caused ctd. I have been looking at videos and tutorials to downgrade skyrim using depot downloads and I have downloaded both versions of this mod https://www.nexusmods.com/skyrimspecialedition/mods/57618?tab=files Is there any way to get my skse compatible with this version 1.5.97.? Whenever I use either patchers I ran both as administrator and hit "start patching" I get this message

System.Exception: Can't patch file, it doesn't match the expected format
   at Patcher.ViewModels.MainWindowViewModel.PatchFile(Instruction file, AbsolutePath gamePath) in C:\oss\ussedp\Patcher\ViewModels\MainWindowViewModel.cs:line 136
   at Patcher.ViewModels.MainWindowViewModel.Start() in C:\oss\ussedp\Patcher\ViewModels\MainWindowViewModel.cs:line 110
Error! Can't patch file, it doesn't match the expected format

I get the prompt

You have updated to the Anniversary Edition (AE) of Skyrim. Please download the AE version of SKSE64 from http://skse.silverlock.org Runtime 1.6.1170

any help would be appreciated I have been trying to get this setup for a few months but I wanted to try the AE content but now I just want my game to run.

 

[ButchDiavolo]

17 minutes ago, TheMoon401 said:

deleted my load order because half of the patches, quests, and utility mods would straight up ctd. Once I got the game able to run half the mods in game did not work or caused ctd. I have been looking at videos and tutorials to downgrade skyrim using depot downloads and I have downloaded both versions of this mod https://www.nexusmods.com/skyrimspecialedition/mods/57618?tab=files Is there any way to get my skse compatible with this version 1.5.97.? Whenever I use either patchers I ran both as administrator and hit "start patching" I get this message

System.Exception: Can't patch file, it doesn't match the expected format
   at Patcher.ViewModels.MainWindowViewModel.PatchFile(Instruction file, AbsolutePath gamePath) in C:\oss\ussedp\Patcher\ViewModels\MainWindowViewModel.cs:line 136
   at Patcher.ViewModels.MainWindowViewModel.Start() in C:\oss\ussedp\Patcher\ViewModels\MainWindowViewModel.cs:line 110
Error! Can't patch file, it doesn't match the expected format

I get the prompt

You have updated to the Anniversary Edition (AE) of Skyrim. Please download the AE version of SKSE64 from http://skse.silverlock.org Runtime 1.6.1170

any help would be appreciated I have been trying to get this setup for a few months but I wanted to try the AE content but now I just want my game to run.

 

Sounds like either the downgrade patcher didn't work properly or you don't have Backported Extended ESL Support installed. Try the Backported mod first and see if that solves the problem. If not, try the downgrade patcher again. In either case, if you have been using AE version 1.6.1130 or 1.6.1170, you will need Backported mod, because Bethesda changed the way ESL files work.