`Plug 'codota/tabnine-nvim', { 'do': './dl_binaries.sh' } ` change to `Plug('codota/tabnine-nvim', { ['do'] = './dl_binaries.sh' })`
Plug 'codota/tabnine-nvim', { 'do': './dl_binaries.sh' }change to
Plug('codota/tabnine-nvim', { ['do'] = './dl_binaries.sh' })