Slider Revolution Error message

[jozhica]

Im getting an error message when i try to activate the plugin.

Site has been running or 5 years and this is the first time im getting this issue.

[rad]

Hi @jozhica,

Thanks for reaching out.

It seems you have updated your Wordpress while the theme and plugins including the slider are still outdated. And this causes incompatibility since the features or some features are already deprecated in the latest Wordpress core version.

I recommend updating your theme and plugins too, but if you’re not yet prepared with the changes then you may restore your entire site to when it’s still working. Then just clone your restored site to a staging where you can do your site maintenance and updates.

With a staging, you can update, test it and even fix issues. And more importantly, you can compare the issues and see what fixes are needed since you have a working copy of your site. Upgrading from very old version to the latest version is more of a site maintenance and it’s only recommended to do the site’s maintenance away from your live site.

Unfortunately, we can’t help you with site’s maintenance from the ground-up, but we can help and guide you to determine the cause of issue one at a time, and possibly find the possible fix if it’s not complex. Still depends on what’s already added on your site prior to the version when it’s still working.

As for the creation of your site’s staging, it’s either use your hosting’s staging feature or create it manually, please check this https://pagely.com/blog/wordpress-staging-site-create/. But personally, this is how I do my staging:

I. Preparation

1. Decide to where you’ll install your Staging, it’s either sub-domain or sub-folder
2. Create a sub-domain or sub-folder in your site using your hosting’s CPanel/File Manager

a. https://www.inmotionhosting.com/support/edu/cpanel/cpanel-manage-domains/creating-a-subdomain
b. https://my.bluehost.com/hosting/help/2238

You may also check your hosting’s documentation in case they aren’t using CPanel/File Manager

3. Install Wordpress to your sub-domain or sub-folder (please check this https://codex.wordpress.org/Installing_WordPress)

4. Once Wordpress is installed to your sub-domain or sub-folder then it’s now your staging, install All in one migration plugin to your staging

II. Cloning/Migration (assuming you already restored your site to when it’s still working - old verions)

1. Install All in one migration plugin to your main/live site (the working copy of your site)
2. Export your live site as a file using that migration plugin ( https://help.servmask.com/knowledgebase/all-in-one-wp-migration-user-guide/ )
3. Import the exported file to your staging using the same migration plugin

And you’re done, you have now a cloned copy of your site as staging. Then you can update the theme and plugins on your staging for testing and troubleshooting. Once all tested and issues are fixed, you can use the same migration process to move the working copy of your staging to your live site,

Thanks!

[jozhica]

The plugins and theme were not updated as it breaks the site so I disabled the updates for the past 2 years. The site has been stable and suddenly I’m getting this error.

[rad]

Hi @jozhica,

I see, but your site’s Wordpress was updated last November so it’s over a year now. Plus the installed theme and plugins are last updated OCTOBER 6, 2015. That’s going to be almost 3 years now.

This is based on the versions displayed on your site’s code and I compared those versions from their released dates.

Given that the plugins and themes were last updated about 3 to 4 years, there is a big gap of 2 or 3 years with the Wordpress version. There are many implemented fixes between those years, and that includes incompatibilities.

And based on that, the updates are just disabled a year ago since it’s still on 4.9.1 instead of 4.9.8 or 5.0. And with your current setup, it’s really going to break. I recommend updating them all to match and fix the incompatibilities. Restoring the site might not a good idea since the working copy of your site is probably a year or 3 years old.

Thanks!