Pavlovia Dashboard Error: 502 Bad Gateway

Online experiments
1

Description of the problem:

Hi everyone,
I got an error when uploading my study on Pavlovia called:

“\r\n502 Bad Gateway\r\n<body bgcolor=“white”>\r\n

502 Bad Gateway

\r\n
nginx\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n”

It also says that I should try and contact an administrator.
Is there anybody here who could help me?

Thank you in advance,

Hanna

2

I got the same error when I tried to run a study in both of our Pavlovia accounts. Also, when a participant was completing a tasks, it did not saved. Moreover, when I tried to access my accounts, I got this error:
Error when authenticating the experiment designer:

3

Yes, me too, and my experiments/accounts have been running successfully for months until today. A Pavlovia-wide error perhaps?

4

Can confirm, had the same issue with a participant just now! None of my experiments are working and I get the 502 Bad Gateway error message.

5

I have the same problem. The study was running fine until now I received a message from a participant that the link does not work. And I get the same error when trying to access my dashboard.

8

I’ve run into a similar issue ~ was running fine up until about 20 minutes ago. Now I can’t access my experiment or my account.

9

This is hitting us too. Please bear with us while we investigate.

10

Same problems here!

11

Same here!

12

Same here, sitewide for Cardiff Uni.

13

Same here!

15

Thank you for your actions. Could you inform us, when it should be fine again?

16

Adding @Mel499 to this topic. I am unlisting repetitions of the same error so information is concentrated here.

17

I think that this error also means that no experiments on Pavlovia are currently able to run.

e.g. https://run.pavlovia.org/vespr/self-paced-reading/

18

Same error here! Hope it gets fixed soon

19

Good afternoon,

The pavlovia server experienced a sudden, very substantial burst of activity, possibly linked to a rogue experiment or series of experiments.
With my apologies, we are now back on. And I am investigating the matter in detail.
Best wishes,

Alain

20

Thank you Alain, I can confirm that I can access my dashboard and run my experiments.

21

:+1:

22

Hi, my experiment is now running but recent changes have not been incorporated. I just pushed them again but there is no change (have tried clearing cached files which typically works). Could this be related to this error?

edit: nevermind, it resolved itself!

24

Hi Alain,
Thank you for looking into it more.
I had been running a study through prolific yesterday but none of the data got saved even-though the participants mentioned reaching the end of the study. Most of them received the following error:
504 Gateway Time-out nginx
This is a lot of data and money lost. Is there any way it could be recovered? Or any suggestion as to the best course of action.
Thank you.