Ipad- Website error code / website no longer loading Help!!

I don't know what I did when I hit the back browser arrow on my iPad while making a transaction on Poshmark.com website and it ended up in me getting an error code and it's not Poshmark that has the problem because I can access the website and my account on other devices. Please help me!

1. My iPad ios is up to date
2. I've cleared the cache/ website data that I know of to do
3. I've tried the Poshmark website using other browsers on my iPad and still I get the same error code below

{
  "error": {
    "error_type": "ForbiddenError",
    "user_message": "Oops! Unable to process request. Please try again later.",
    "error_code": "2052"
  }
}