opencart控制器更改被忽略

I am using opencart v2.3.0.2 on a xampp(win7) installation.

When I change some code in an opencart controller, these changes are being ignored.

I believe the old controller code is still in the cache.

How can I clear or deactivate the apachePHP/opencart cache or is the problem somewhere else?

I commented the caching module in my httpd.conf

#LoadModule cache_module modules/mod_cache.so

but it changed nothing.