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Help "Unfortunately, calendar has stopped"

smitty543

Android Enthusiast
Jan 16, 2011
630
97
Suddenly, my M8 started flashing message "Unfortunately, calendar has stopped" and locks the screen until I press "OK". Tried to uninstall HTC Calendar updates and reinstall the updates and cleared Cache Partition, but still get the message. Any thoughts as to what the problem is and how to correct? Thanks for the assist!
 

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