Unable to save settings: Failed to save settings. Please restart WebStorm，webstorm一直报错

webstorm16和17版本都会出现这个，之后快捷键都不能用了，而且还一直报错，有大神可以解决吗

 

2017/12/2
1:45 Platform and Plugin Updates: WebStorm is ready to update.

2:19 Unable to save settings: Failed to save settings. Please restart WebStorm

2:19 Unable to save settings: Failed to save settings. Please restart WebStorm

2:19 Unable to save settings: Failed to save settings. Please restart WebStorm

2:19 Unable to save settings: Failed to save settings. Please restart WebStorm

2:20 Unable to save settings: Failed to save settings. Please restart WebStorm

2:20 Unable to save settings: Failed to save settings. Please restart WebStorm

2:20 Unable to save settings: Failed to save settings. Please restart WebStorm

2:21 Unable to save settings: Failed to save settings. Please restart WebStorm

2:21 Unable to save settings: Failed to save settings. Please restart WebStorm

2:21 Unable to save settings: Failed to save settings. Please restart WebStorm

2:22 Unable to save settings: Failed to save settings. Please restart WebStorm

2:22 Unable to save settings: Failed to save settings. Please restart WebStorm

2:22 Unable to save settings: Failed to save settings. Please restart WebStorm