PR Application 4 Extended family COA Stated no Right to work

[Osafidence]

PR app 4 Extended (Nephew)non EEA family member to EEA family Aunty

App sent 26/10/17
Ho recved. 27/10/17
Payment by postal Order
Bio n coa recved on the same day 09/11/17
Both Dated 06/11/17
Bio submitted 14/11/17
Coa recved on 09/11/17 stated no Right to work
Ref no.....not recognised
Just wondering if employer will check on ECS to confirm right to work?

Can i still continue working and wait for my employer to verify from ECS? Though Employer has not asked for biometrics or COA letter.

Any advice is highly appreciated. Thank you