Google play services not available
For the last 4 hours I've been trying to fix this app because I cannot open any of the problems because it keeps telling me Google play services unavailable because I accidentally pressed deny when it asked for permission. I've uninstalled Google play services and reinstalled. I've uninstalled sololearn and reinstalled. I've cleared data from play store. But nothing I do causes the app the ask for permission from Google play services anymore. Please help I'm dying.