Question: in pdsolve/numeric/process_PDEs) all dependent variables in PDE must have dependencies esplicitly delclared

hi guys,

i need to solve s system pf three PDES numerically and ended up with "in pdsolve/numeric/process_PDEs) all dependent variables in PDE must have dependencies esplicitly delclared". Can anyone gives me a hint to fix it (worksheet is attached).

Thanks

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