I have several years in use Lightroom 6.6 with my account 'A'.
A friend recently bought Photoshop Elements 14.1 with an other account "B" and installed it on my Mac to work with my hardproofed monitor.
Now in Lightroom appears the wrong account "B" and there are "Error 16" or the message "Reinstall program" at startup.
System Mac 10.11.6
Request for support
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