Cannot Add SBI Bank Account on Tashanwin App

I use the Tashanwin app from Ambala, Haryana (134203), and until recently, I was able to add my SBI bank account and withdraw without any issues. From today, I am no longer able to add any bank account in the app. When I try to add my SBI bank account for withdrawal, the process stops with an error saying that the One Time Password (OTP) was not received, and the required pop-up to complete the step does not work properly. Because of this OTP problem, I cannot add my bank and cannot proceed with withdrawals on Tashanwin, while similar actions work correctly for me on other platforms. I request that this One Time Password problem on Tashanwin be checked and fixed urgently so that I can successfully add my SBI bank account and use the withdrawal feature again without interruption.