502 Proxy Error

Thank you for the reply. I went through The Calendar Is Loading Slowly article but none of the suggestions were helpful:

There are zero events.
There are 2 venues.
There are 2 organizers.
Number of events to show per page in list view: 3
Number of events to show per day: 3
Month View Cache is enabled
Recurring events: There are no recurring events (not using TEC Pro).
Move to trash events older than: Disabled (there are no old events)
Merge duplicate Venues & Organizers: There are no duplicates.

This website used TEC 4 years ago, but they stopped using it shortly thereafter. I just reinstalled the plugin because now they want the calendar.

The main issue is I edit and save a page totally unrelated to TEC (such as a test page with not much on it) and when I try to view that page it takes forever and then gets a 502 error (sometimes 404). If I try to view the site using a different browser it’s the same problem — the site is basically offline for some period of time (many minutes).

If I deactivate the TEC plugin I can edit and save pages with no issues. Somehow TEC is interfering with editing/saving pages. Is there any debugging technique that I haven’t tried yet that I can use to see what is going on?

TEC has been updated to 6.10.2

As expected 2021 theme works. I created a new page and published it and I could view it with no problem. The Calendar page comes right up.

I have used TEC with the Avada theme on about a dozen other sites without problems. In fact, TEC comes bundled with the theme. So compatibility shouldn’t be an issue.

Any ideas for what else I can try?

Hostmonster is in the process of updating their servers to MySQL 8.0 (currently it is 5.7). They could not give me an expected date for our server. They said I could create a new account on Hostmonster because it would have MySQL 8.0 but then we would lose the hosting plan we already paid for (expires in August). And I don’t know if updating MySQL would fix the problem anyway.

I had another idea: I was thinking that maybe the database had gotten corrupted somehow so I created a development site with a fresh install of WordPress and the Avada theme and TEC, then exported content from the live site (JSON file) and used WordPress importer to import to the development site. Still have the error. It is on the same server, so is using MySQL 5.7.

I am out of ideas, other than to wait until Hostmonster updates MySQL (don’t know when that will be), or use a different events calendar plugin, or move to a different hosting company (which would lose the hosting plan on Hostmonster through August that is already paid). None of those are good options. I let my client know and they will decide.

Good point! I started with a new install of WP, Avada theme, and TEC. Then imported the exported XML file from the live site. But I included everything in the exported file, I should have excluded TEC data (events, organizers, etc.) So I will have to start over and go through the process again. I don’t have time today, so I’ll try it tomorrow.

Still the same problem. I thought that when I exported all the WordPress content from the live site using the WP exporter to create an XML file that all the TEC content came with it (events, venues, etc.). But I found out that when TEC is deactivated that WP does not export TEC data. Also, I had deleted the TEC data using the TEC extension Test Data Generator plugin. So the development site I created had no old TEC data and I did not add any new data either. Still the same issue: if TEC is activated when I edit & save a page I then cannot view any pages — it’s busy for a looong time and then I get 502 or 404 error. At some point (not sure how long exactly, maybe 10-15 minutes) the site is working again as long as I don’t edit anything. I have run out of ideas. Is there any way to find out what it’s doing when the site goes into the weeds? I don’t know how to debug PHP or JS code.