That's strange. Does the secret start with an "s" and is about 29 characters long?
Yes it starts with an "s" and yes it is 29 characters long...
That's very strange. Maybe there's a typo in it somewhere? Maybe you confused an I with a 1 or a 0 with an o? Or maybe you got the case wrong on one letter?
Perhaps these four things will help:
1) There are no zeroes.
2) There is no capital I.
3) There is no lower case l.
4) There is no capital O.
Legal characters are:
1 2 3 4 5 6 7 8 9 a A b B c C d D e E f F g G h H i j J k K L m M n N o p P q Q r R s S t T u U v V w W x X y Y z Z