Class 'Phug' not found in module folder

[benbyford]

Hi, sorry if a silly question but after install getting this error in the front end, Phug class not found. Any guidance here appreciated?

[dreerr]

Sorry for getting back so late.
Did you install the module with composer?

[benbyford]

Sorry no, I installed the TemplateEngine module fine with composer but this module errored out, so I added it manually