Bot fails on Unattended mode

Hello,

          I created a bot which was working fine before. From past 2 weeks it has a problem. Bot needs to enter the current day’s yesterday date on Date Field. On attended mode it’s working fine, but unattended mode it is not working. Even I recaptured the field with all options. It’s working on attended mode not on unattended mode. Kindly give me a solution for my issue.