Our engineers just released a fix for this issue. Could you please try submitting proposals again and let us know if you still see the error?
Just to confirm that your profile is approved and you can start biding on jobs.
If you have not, you will need to select one of our membership plans by going to Settings > Membership&Connects. Thank you.
I just checked your account and I can see that you have selected a membership plan and you`re all set up to bid on jobs.
Are you experiencing any other issues on your end? Thank you.