Problem when installing Dolibarr OTP on a 9.0.3 version

[micheljn]

Hi,
I would like to use your system on the new Dolibarr version (9.0.3) but unfortunately, I have got this message when I try to connect to my Dolibarr account with your system:
Error: Bug into hook getLoginPageOptions of module class ActionsOtp. Method must not return a string but an int (0=OK, 1=Replace, -1=KO) and set string into ->resprints
Do you have any idea of how I can make your system operational?
Thanks