Timo Club Registration Blocked by Invalid Invitation Code Errors

While attempting to sign up for the Timo Club application today, I am constantly encountering an error on the invitation code screen. During the login and registration phase, even though I try entering different codes in the invitation code field, the warning "Invitation code is invalid" appears every single time, preventing me from completing the registration process.

I need to generate an invitation code within the app, but the system does not allow it, so I am unable to open my account. I have not yet contacted customer service, and I believe the issue stems from the application itself.

I request that Timo Club investigate this issue in their invitation code generation and verification system, assign a valid invitation code so I can open my account, or remove the invitation code requirement to allow me to register.