enable % Error in authentication.

[leam2]

Hello,

Five days ago, I created a user:
router(config)#username <username> password <password>

And ran the following commands:
router(config)#aaa new-model
router(config)#aaa authentication login default local
Etc.

Now, I can connect to the router identified as <username> with its password but I forgot to create it with "privilege 15".

And the command "enable" fails:
router> enable
% Error in authentication.

How can I solve this without resetting the router to factory defaults?

Thank you.

[leam2]

I used this document to solve that issue:
https://www.cisco.com/c/en/us/support/docs/routers/2600-series-multiservice-platforms/22188-pswdrec-2600.html#proc2