0365 excel Filter linked search box returns #Calc empty array error sheet attached.

0365 excel inventory sheet, Filter linked search box returns #CALC! Empty Array error sheet attached. K10 in formula red. formula actually worked until I tried to add Conditional higlight formatting to rows. I have tried new work books and sheets to no avail. Thank you in advance to anyone that can assist me.

Welcome to the forum! There is a #REF! error in your formula: =(FILTER(A2:A595,ISNUMBER(SEARCH(K14,#REF!))))