Develolped long floating bar - now getting Windows not finding shortcuts - I know how to fix

Now my floating bar has several issues, most prevalent Win10 does not find shortcuts (shortcut.lnk). But I don't remember now how to fix simple things like this. Do you have tips to make these fixes simpler? Or even better a section in Dopus that goes in detail.
Example: I found how to improve sound and added a System\Windows sound issues\Sound - Shortcut.lnk to fix this.
Please, I am now a newbie
Thanks

More information is needed. What are the shortcuts to? What commands do the toolbar buttons run?