Section 143(1)a ii recieved

Hiiii sir

i filed Return for AY 19-20, a long term capital gain from sale of land nd claimed deduction u/s 54f cause i purchased another land nd constructed residential house on that, i received this notice with 30 day time period for reply which is lapsed nd now i can see in income tax portal there is showing that add authorised representative, i want to know what is this error??, whether i can file revise return for the same nd this notice proceedings will get complete.

the notice says
1) SCHEDULE SI
the amt entered in schedule sIare inconsistent with the corresponding amt entered in Sch CG/OS
2) SCHEDULE CG
there is inconsistency in the LTCG amts/ totals entered in schedule cg or taxpayer is claiming deduction u/s 54 which are more than amts allowable as per the respective sections.
plz suggest.