Missing main sections on flight planning page

Hello. I’m trying (and failing) to plan a flight CYYZ to EGLL. I get the following sections: Flight Info, Aircraft Info, Selections, Optional Entries, Route and that’s all. The Fuel Planning, Text Entries, Alternate Airports, ETOPS Scenario, Historical Weather and Debug Parameters are all missing from the website. When I click on ‘Hide Options’ in Optional Entries, the entire section disappears and will not come back. I have logged off and back on, used Edge, and Chrome and another browser with no success. All the same. I turned off all ad blockers even. System says it operating. Is there something I’m missing or is anyone else having issues on the website as well?