i have also this issue.
Installed:
OS: FP Open OS 16.06
OpenGAPPS: Pico
Location: Battery save mode.
My workaround for “Unfortunately, Google Play Store has stopped” Message.
- Go to Settings > Apps.
- Scroll to All apps and then scroll down to “Google Play Services” app.
- Open the app details and tap on the “Force stop” button.
- Then, tap on the “Clear cache” button.
Go back.
- Scroll down to “Google Services Framework” app.
- Open the app details and tap on the “Force stop” button.
- Then, tap on the “Clear cache” button.
Restart the phone.
** Since 2 weeks no more “Unfortunately, Google Play Store has stopped” Message.