The current firmware 2.0.9 allows up to 32 characters for password, you can use numbers, special characters, space, quotes. Basically no restrictions on what characters. and it’s case-sensitive.
The password you showed is 50 characters long, which exceeds the 32 limit.
In the upcoming firmware 2.1.0 I was planning to reduce password to 24 characters max but we can keep the limit to 32 if that’s necessary.