Purescriptls not working

Hi, try to use purescriptls with nvim-lspconfig and nvim-compe.
completion doesn’t work and keep showing error

E5100: Cannot convert given lua table: table should either have a sequence of positive integer keys or 
contain only string keys                       
Error executing vim.schedule lua callback: error converting argument 2 

it only appear when i try to require lspconfig


can anyone guessing what this is?