Prevent crash on nil in PortualEventsScraper.
Prevent crash on nil in PortualEventsScraper.

ElixirUK/TeSS_scrapers,ElixirUK/newtessscraper,ElixirUK/TeSS_scrapers,ElixirUK/newtessscraper,ElixirUK/TeSS_scrapers,ElixirUK/newtessscraper