MacBook Pro App Store white screen + Music error message

Have seen this behaviour elsewhere from time to time. One may have picked up a piece of Malware or Adware.

Suggest downloading from a Respected ASC Contributor the application Malwarebytes for Mac. It is free or paid for added features. Run the Application and it should remove the malware / adware. Once done, restart computer and test.

There are no known Viruses in the wild that self replicate and affect macOS. There are Malware and Adware that does affect macOS and are often times downloaded as part of an Application from Third Party UnTrusted Site and get installed along with the Application

And / Or

Suggest downloading the Application Etrecheck directly from a well Respected ASC Contributor. The application is free or paid from added features. Run the application with Full Disc Access ( Security & Privacy - Full Disc Access ). It will take a Snap Shot -  both the hardware and software. The Report will Not Reveal Any Personal Information. Post back the Full Report - copy and paste - using the Additional Text Icon ( 3rd Icon to last )

We can have a look at the report for possible issues and may have possible suggestions to resolve the issues.

Thank you for the Report.

Below is what appears to be definite Adware Infestation to the point of Installing a False Proxy. That would account for your earlier posting and issue

SSD too slow - SSD is showing poor performance. - Signs of SD getting old

Time Machine backup out-of-date - The last Time Machine backup is over 10 days old.

Proxies - Network proxies detected. This could be evidence of malware.

Unsigned files - There are unsigned software files installed that could be adware and should be reviewed.

High battery cycle count - Your battery may be losing capacity.

Battery: Health = Replace Soon - Cycle count = 1062

Launchd: /Library/LaunchDaemons/com.SkilledUnitd.plist

Executable: /var/root/Library/Application Support/.SkilledUnit.dp/SkilledUnitdd pd

Details: Domain name invalid - possibly adware

Launchd: /Library/LaunchDaemons/com.SkilledUnitd.plist

Executable: /var/root/Library/Application Support/.SkilledUnit.dp/SkilledUnitdd pd

Details: Domain name invalid - possibly adware

Launchd: ~/Library/LaunchAgents/com.11761142044588387537.plist

Executable: ~/Library/Application Support/com.5184596193229446859/14741304741875261855 1D30DBA2-25

BB-597E-A30B-4CE1E6683DB4 1137

Details: Domain name invalid - possibly adware

Launchd: ~/Library/LaunchAgents/com.11761142044588387537.plist

Executable: ~/Library/Application Support/com.5184596193229446859/14741304741875261855 1D30DBA2-25

BB-597E-A30B-4CE1E6683DB4 1137

Details: Domain name invalid - possibly adware

It might function well but how long before the battery ceases to function at all without being connected to charger ?? That, once batteries fail - the danger of it swelling and affecting other internal components increase greatly

Welcome.

Since you have marked you own posting as Solved - this basically means this case is closed ? !!

" Well Respected ASC Contributor " is acknowledging the work this person does on the ASC Forums as well as the Development of the Etrecheck Application. Which, by the way, if often used by Apple Support itself in analyzing computer issue.

Well not enter the discussion between you and wife. But at a similar age and all pistons are firing fine - a new toy is well worth it to help keep the oil flowing.