keyboard MacBook Pro became crazy after cable hdd and hdd replacement

Hi, please i need your help.

i replaced my hdd and his cable with an ssd and an old cable(end 2011 instead of mid 2012).

now 3 keys are pressed automatically(cmd and space).

Some times it works and sometimes not.

when it works,once i press space it continues pressing space until i touch an other key.

my keyboard became crazy.