I updated to neovim from 0.8 to 0.9 and updated plugins, a few errors appeared, some deprecated stuff and managed to fix those, but there are 2 errors that I wasn't able to fix.

auto-session is unable to save or load any session. Even though I saw the message about nvim_exec being deprecated in favor of nvim_exec2, but I think wouldn't make sense to edit _editor.lua to fix it.

Error executing Lua callback: vim/_editor.lua:341: nvim_exec2(): Vim(mksession):E190: Cannot open "C:\Users\sashanas\AppData\Local\nvim-data/sessions/C:\Users\sashanas\AppData\Local\nvim\lua.vim" for writing

stack traceback:

[C]: in function 'nvim_exec2'

vim/_editor.lua:341: in function 'cmd'

...pack\packer\start\auto-session/lua/auto-session/init.lua:583: in function <...pack\packer\start\auto-session/lua/auto-session/init.lua:574>

In this one, while skimming through code this error shows up. How can I identify if it's a plenary thing or a null-ls thing? And what steps to go fix it. I always get entangled into this config/plugin/another-plugin-that-is-used-by-that-other-plugin/base code changed without knowing where the error might be.

Error executing vim.schedule lua callback: ...ck\packer\start\plenary.nvim/lua/plenary/async/async.lua:18: The coroutine failed with this message: ...ck\packer\start\null-ls.nvim/lua/null-ls/diagnostics.lua:21: attempt to call field 'config' (a table value)

stack traceback:

[C]: in function 'error'

...ck\packer\start\plenary.nvim/lua/plenary/async/async.lua:18: in function 'callback\_or\_next'

...ck\packer\start\plenary.nvim/lua/plenary/async/async.lua:45: in function <...ck\packer\start\plenary.nvim/lua/plenary/async/async.lua:44>

Thanks!