Errors

1. Initial water surface elevation below grid at all segments.
2. Downstream boundary segment width [B(1,23)=34.745] /=0 for branch 1
3. Surface boundary layer cell width [B(1,2)=33.180] /=0
4. Layer thickness [H=.00] <= 0.0 m for layer 13 in water body 1
5. Starting date [1080012.000] > simulation start date [TMSTRT=10.000] in MET.npt
6. Julian date 1081622.000 <= previous date 1081622.000 in WQ.npt

Please help me solve this error.
Thanks. Mansi