I can't Open .app File in OS X Yosemite

[fokenli]

Hi All;
I have a stupid question. Because, That problem is totally my fault. I am new OsX user. I have installed some programs with using CleanMyMac. But, I am thinking of uninstall wrong program. Because, I cannot open .app files. You can see the fail message at screenshot. I am waiting your replies.

I have tested another OSX Macbook and files is working.

 

[Gwendolini]

It is just a script, in application form.

Be sure to check System Preferences - Security - Allow Apps downloaded from: Anywhere.

And if you enjoyed Adobe CC enough after the extended trial period, be sure to purchase the product of your choice.

 

[fokenli]

Hello Gwendolini;

Thank you for your reply. I have checked your advice and attached screenshot. The box checked anywhere. I have uninstalled some programs and then the problem has been started my Mac.
Also, I like Adobe programs but I am learning right now. If I can learn I will buy
Thank you again.

 

[Gwendolini]

What programs did you install?
And did you use CleanMyMac for that? If so, then that might probably the cause, as it is known to damage the system.
You might need to reinstall Yosemite via the recovery system or restore from a backup when your system was working.

This could be an interesting read on those uninstall programs: http://www.thesafemac.com/how-to-uninstall-software/