Invalid request URL from Client. The requested URL is not well formed

My problem is I get an Invalid Request page when I login to Amazon sellers account.

The page reads: Invalid request URL from Client. The requested URL is not well formed.

This occurs after I type the OTP code from my phone to the login webpage and selecting Australia to sell my items.

I have attached to this post a screenshot of what the page looks like.

Here is the URL of this page: https://sellercentral.amazon.com.au/mario/rfb/orbis-registration/global?primaryMarketplace=ATVPDKIKX0DER&passthrough%2Faccount=fba_soa&marketplace=A39IBJ37TRP1C6&passthrough%2FinitialSessionID=357-3205716-4111255&productTier=FBA%3ASILVER&mons_sel_locale=en_US&welcomePageV2WeblabTreatment=T1&language=en_US&passthrough%2FsuperSource=OAR&passthrough%2FmarketplaceID=A39IBJ37TRP1C6&ingressMarketplace=A39IBJ37TRP1C6&marketplaceId=A39IBJ37TRP1C6&ref=sdau_sell_hnav_signup&passthrough%2FldStackingCodes=ELAUSOA-fe.lego.a2z.com&passthrough%2Fld=AZAUSOAYA_sdau_sell_hnav_signup&expectedWelcomeWeblabTreatment=T1&productType=FulfillmentByAmazon%3ASellOnAmazon&targetRegion=AUAmazon&mons_sel_dir_mcid=amzn1.merchant.d.ADMA3X6JOQK2Q2PFHFNAGRBLOSFQ&mons_sel_mkid=A39IBJ37TRP1C6&mons_sel_dir_paid=amzn1.pa.d.AC7TWF7C77CTED3GNCZV4MCJYJUQ&ignore_selection_changed=true

I have tried logging onto to my Amazon Seller's account from Google Chrome and other web browsers.

I have run disk-cleanup, private-mode and the problem is still there.