-1 on lock screen email app

[droidjoe26]

for about a few days everytime i look at my email app on the lock screen it shows -1 emails to read i have tried to go in and make sure all emails are read and even make sure no unsent emails i have even turned off phone and turn it back on and it still shows -1 on the lockscreen for emails if anyone could help me i would appreciate it i know i could delete accounts and start all over but i would prefer not to do that.