Can I modify the weight of a public key

Product & Ideas
1

What can a low weight public key do? Can I modify the weight of a public key?
Can I still operate this account?
[https://flowscan.org/account/0x4e1ac51acb8990f3/keys]

Command Error: [Error Code: 1055] authorization failed for account 4e1ac51acb8990f3: payer account does not have sufficient signatures (1 < 1000)

2

Did anyone see it?

3

fyi,
Accounts, Keys & Signing - Flow Documentation (onflow.org)

4

Thank you for your reply.

My current situation is that I accidentally set the weight of the public key to 1 when creating the account, and there is only one public key.

Now I can’t operate the account because of insufficient weight, so I want to ask what can be done to solve this problem

5

Thank you for your reply. My current situation is that I accidentally set the weight of the public key to 1 when creating the account, and there is only one public key. Now I can’t operate the account because of insufficient weight, so I want to ask what can be done to solve this problem