ttran18

Update:

I have checked the Site Health tool and found some more detailed indications:

• The REST API request failed due to an error.
  Error: [] cURL error 60: Peer’s Certificate issuer is not recognized.
• The loopback request to your site failed, this means features relying on them are not currently working as expected. Error: [] cURL error 60: Peer’s Certificate issuer is not recognized.

Some other errors and log:

• Could not confirm that the wp_version_check() filter is available.
• The optional module, imagick, is not installed, or has been disabled.
• Deprecated: Array and string offset access syntax with curly braces is deprecated in /home/user/domains/%%domain%%/public_html/wp-includes/script-loader.php on line 757
• Deprecated: Array and string offset access syntax with curly braces is deprecated in /home/user/domains/%%domain%%/public_html/wp-includes/script-loader.php on line 758

So, could it be that the above listed errors and logs and the “Add new” function error under Plugins page are resulted from “[] cURL error 60: Peer’s Certificate issuer is not recognized.”? If yes, then what action should I proceed to solve this?

Moreover, I have both PHP 7.4 and PHP 5.5, could these versions (especially 5.5) not support or conflict with my current WordPress version 5.2.18?

Thank you once again for your time and effort. I truly appreciate all of your kind support.

• This reply was modified 1 year, 6 months ago by ttran18.

Hello @jwilde4,

Thank you for your kind support. I have tried the plugin activate/deactivate method, however I have not yet found any problem.

Regarding other methods, similar to @ndmohame, I have not received any emails from WordPress indicating the detailed error log, thus I could not enter the dashboard in recovery mode to check the error notifications as you mentioned.
I have also turned on debug mode but the same announcement: “The site is experiencing technical difficulties. Please check your site admin email inbox for instructions.” appears, and no other information for further reference.

As mentioned above, I could login as admin to dashboard normally via %%domain%%/wp-admin or %%domain%%/wp-login.php. All the functions and sections work normally when I navigate around the dashboard.

I can also access the Plugins page and see and deactivate/reactivate the installed plugins normally. Only when I press “Add new” to install a new plugin, it leads to the above mentioned announcement.
So I have to download the folder of that new plugin, and go to my host portal to manually upload it to plugins folder, then go back to Plugins page on dashboard and click “Activate”, for the plugin to run.

Alongside with @ndmohame, I have seen some others reported the same issue, with their page and dashboard running normally.
So would it be the problem related to the Plugins page that list all available plugins for browsing and installing, etc… provided and administrated by WordPress team, not from our own websites? If so then where do we find the contact info for support?

Regarding updating WordPress core version to 6.3, I have seen a number of plugins have not yet tested up to this version, so would it be safe to update to 6.3 as I fear there would be conflicts? I am currently not having a staging server to test the update.

Thank you once again for your kind help. Look forward to hearing from you soon.

Hi @auctollo, thank you for your kind reply.

I have tried your advices, however when deactivating the plugin from our host portal, I manage to access and scroll around the interface of the dashboard, but I cannot navigate between sections or access into plugin pages to find and adjust the plugins.

And when I try to access the “Add new” section under Plugins page, the site leads to an announcement: “The site is experiencing technical difficulties. Please check your site admin email inbox for instructions.” (See attached). But I have not received any email from WordPress indicating the detailed error.?The URL of this is wp-admin/plugin-install.php

Thank you one again for your kind support. I truly appreciate your time and effort for helping me revising this problem.