When closing the Memetic wallet it crashed and didn't close properly; it didn't show the window that warns not to shut down the computer till the program ends. After long time I had to kill the process. since then, when I start the wallet it doesn't show the bar at the bottom that shows the advance of synchronization. Apparently, it synchronizes instantly. Also since then, when I close the wallet it doesn't show anymore the small window warning not to shut down the computer till it ends. So, something is broken. I still get some payments from the masternode but with a much lower pace than before.

How to repair it? I was thinking on deleting everything in .pepecoin folder (I am in Linux) except wallet.dat, masternode.conf and the “backups” folder and its contents and start the program, but I don't know if that will make the things worse.