Hi, it's not a kata issue if your code doesn't work, issues are for when the kata has some problem. you need a faster algorithm to pass, cheers

state your language, post your code with proper markdown formatting, tag the post as a spoiler, and then someone may be able to help you

It's hard to help you when you don't state the language nor we know your code. If it is Python, the default error message for assert_equals format is A should equal B where A is what your function returned and B the expected result.