The algorithm is wrong, the submission is rejected, meaning is not a block, can be determined not scrypt or sha256, may be other algorithms
Not possible, I can confirm that the algo is scrypt, and I've found some blocks through rpc solo. Make sure the RPC type is POS, your pool might be misconfigured.
A face Meng force, previously dug a lot of scrypt algorithm coins are normal. This is a pause for the door bird