LaTeX Error: This file needs format `pLaTeX2e' but this is `LaTeX2e'.

```
Running TeX ...
error: cimt.cls:23: LaTeX Error: This file needs format `pLaTeX2e'
               but this is `LaTeX2e'.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help
error: halted on potentially-recoverable error as specified
```
