Application Support/Adobe/Adobe Desktop Common/IPCBox
Win: C:\Program Files (x86)\Common Files\Adobe\Adobe Desktop Common\IPCBox
Create folders if those are missing.
4. Paste the copied file into the location mentioned above by right click menu option "Paste" or cmd+v.
5. Relaunch your application - the issue should be gone.
Note: If you do have AdobeIPCBroker in the location mentioned in the step 5, but it is missing from the location mentioned in step 1, just do the same steps of copying the file from one location to another.
Please, let me know if you have questions and if this helps!