Error detected while processing function fff#open_fil

[balazser]

Hey, thank you for the plugin!

Recently I got an error message, and I'm wondering have you met it too, or how could I fix it? 🤔

Error detected while processing function fff#open_file:                                                                                                                                                            
line   10:                                                                                                                                                                                                         
E16: Invalid range: 2wincmd w                                                                                                                                                                                      
Press ENTER or type command to continue 

ive got this issue too, a fix or how to fix would be appreciated