I can fix it using beach-dix’s method, but I do the followings to save my settings:
Close NP++ Go to NP++ directory Rename config.xml to config_backup.xml Copy config.model.xml to config.xml Start NP++ Check if it’s fixed. Close NP++ Delete config.xml Rename config_backup.xml to config.xml Start NP++So the config file isn’t changed in the end, but when I started NP++ with a new config.xml something got reset, then I could copy back my configs.