how to get available now form to accept my schedule?

from Sherry of DFW ----Dallas july 2025-
used to be easy available now --just tap red to green ciecle

NOW daily time schedule must be filled out

BUT BUT -everytime i go thru the LONG process of entering a beginning and end time for each of 7 days--then hit SUBMIT--i keep getting red sign that says enter valid value
how do i get my available now schedule to be accepted??

the available now feature isn't working yet from what I know