At the time of writing, the petition is difficult to access, presumably due to a surge of traffic. The count is at 55,000 right now and climbing at roughly a thousand signatures a minute.
All petitions to the site that receive over 100,000 signatures must be considered for debate in Parliament, as was the case with the cannabis legalisation one.(…)
Of course, a second referendum would almost certainly be rejected, as it‘s not the sort of thing you get a second crack at.