it was mixing the word "Passed" with "Date Reached"
Please update with this:
=SUBSTITUTE(IF(F5=TODAY(),"Date Reached",TODAY()-DATE(YEAR(F5),MONTH(F5),DAY(F5))&" Day(s) ")&IF(TODAY()-DATE(YEAR(F5),MONTH(F5),DAY(F5))>=1,"Remaining","Passed"),"ReachedPassed","Reached")
Regards,