Unstable, problems on upgrades

They issued an update this week. Update crashed the website. Had to remove plugin via FTP. Reinstalled plugin, did not remove existing database entries, but reinstalling the program reinitialized the plugin. Have to manually input all the information again B-(. This happened on six of the websites I host and tied me up for most of this afternoon. I am not a happy camper. This is not the first time this plugin has caused me problems on updates.