question regarding panel data analysis

Good day R-users,

So if the question may seem easy to many of you but this present a
serious  issue for me . I'm currently running a panel data analysis
i've used the plm package to perform the Tests of poolability as
results intercepts and coefficients are assumed different. so my
question is should give up the panel analysis in my case or is there
any alternative methodology or transformation i can use instead??

Any hint would be highly appreciated

thanks a lot in advance.

Ama