Icon help (HELP ME ASAP)

[BRUH HELP MEH]

So recently i decided to change up my program icons. I downloaded them from iconspedia and i changed them and they worked perfectly. But today i noticed some of them changed and some of them stayed the same. I don't know what happened and when i try to change the icon back to its default it saids this: "Windows can not find the file usr/share/icons/oxygen/48x48/apps/opera.png." Then when i click OK it sends me to the Windows preloaded icons (Which i hate... they ugly). And when i try and download the original icon from iconspedia it still goes back to an ugly thing. Here is a screen shot of it.

 

[BRUH HELP MEH]

It stayes like that white paper and it doesnt chage back. I have tried a restart and changing the icon back but it doesnt work. (BTW those three icons are Opera, Spotify, and Open Office.

 

[TheEye]

have you been to the location of the png to see if its there ore not ???

 

[TheEye]

and i have a problem of my own if you can help me ore anyone else ???

 

[TheEye]

This is how my swf icon looks like its the default application icon but its smaller and inside the default windows unknown icon how can i remove it and display the icon at full size ???

 

[TheEye]

cant post image yet