Exception error: Server error

[pmiot]

While executing client.py I encounter the following error.

[1] Model LinearLayer:
[*] Description: Linear Layer computing out = encrypted_input.matmul(weight) + bias
input and output shapes depends on the parameters weight and bias
The input should be encrypted as a tenseal.CKKSVector, the output will as well be encrypted.

[] Versions: ['0.1']
[] Default version: 0.1

====================================
Traceback (most recent call last):
File "client.py", line 31, in
result = client.evaluate(model_name="LinearLayer", context=ctx, ckks_vector=enc_vec)
File "C:\anaconda3\lib\site-packages\eeval\client\client.py", line 123, in evaluate
Client._handle_error_response(response)
File "C:\anaconda3\lib\site-packages\eeval\client\client.py", line 136, in _handle_error_response
raise ServerError("Server error")
eeval.client.exceptions.ServerError: Server error