Remove CleanMyMac and your problem will be solved. Make sure to start by using the Uninstaller provided by them. Even after that, all of the files will most likely not be deleted. Simply dragging it to the trash will not remove all of its files. They do not make it easy to remove all of these files as the company will always want to remain a presence on your computer to pop up fake virus messages, so you will pay more money for additional software.
To make sure all files have been removed you can use EtreCheck and post the report here using the Additional Text option. This program will provide a snapshot of your system and show what gets installed on startup. It does not include any personal information and the program was created by a fellow contributor here to help others.
Using EtreCheck - Apple Community