Why is the last test of Bruce Lee considered invalid?


From what I understand, the input is invalid if it is not an alternation of 0 and 1 (whatever the first byte is) or if it contains any other character than 0,1 or blank space.
Could anyone explain why this input (test 11) should be considered invalid ?
0 0 00 0000 0 0

Thank you

Admin edit
puzzle link: https://www.codingame.com/ide/puzzle/bruce-lee

you have to work with 7-bits coding/decoding. But in test 11 there is only 6 bits provided, so it is invalid.