Stack trace printed when running plugin

[kovasap]

E5108: Error executing lua ...im/0.8.1/share/nvim/runtime/lua/vim/treesitter/query.lua:499: bad argument #1 to 'handler' (string expected, got nil)
stack traceback:
	[C]: in function 'handler'
	...im/0.8.1/share/nvim/runtime/lua/vim/treesitter/query.lua:499: in function 'match_preds'
	...im/0.8.1/share/nvim/runtime/lua/vim/treesitter/query.lua:584: in function '(for generator)'
	...r/neovim/0.8.1/share/nvim/runtime/lua/vim/treesitter.lua:239: in function 'fn'
	...1/share/nvim/runtime/lua/vim/treesitter/languagetree.lua:210: in function 'for_each_tree'
	...r/neovim/0.8.1/share/nvim/runtime/lua/vim/treesitter.lua:217: in function 'get_captures_at_pos'
	...al/share/nvim/site/pack/packer/start/dim.lua/lua/dim.lua:82: in function 'get_treesitter_hl'
	...al/share/nvim/site/pack/packer/start/dim.lua/lua/dim.lua:47: in function 'highlight_word'
	...al/share/nvim/site/pack/packer/start/dim.lua/lua/dim.lua:140: in function 'hig_unused'
	[string ":lua"]:1: in main chunk
	[C]: in function 'nvim_exec_autocmds'
	...r/neovim/0.8.1/share/nvim/runtime/lua/vim/diagnostic.lua:1426: in function 'reset'
	...w/Cellar/neovim/0.8.1/share/nvim/runtime/lua/vim/lsp.lua:1142: in function <...w/Cellar/neovim/0.8.1/share/nvim/runtime/lua/vim/lsp.lua:1134>