Whitescreen (Resolved)

Whitescreen this morning on admin; frontend is fine – and the actual plugin is working on front end as well.
Troubleshooting: I deleted simply-gallery-block-premium via FTP, and the backend admin worked again.
Re-installed the plugin, and everything is fine.
This is just a heads-up for anyone who encounters this, as I shouldn’t be the only one.

Howdy!

Since WordPress 5.2 there is a built-in feature that detects when a
plugin or theme causes a fatal error on your site, and notifies you
with this automated email.

In this case, WordPress caught an error with one of your plugins,
SimpLy Gallery Block & Lightbox Pro.

First, visit your website (https://tranceam.org/) and check for any
visible issues. Next, visit the page where the error was caught
(https://tranceam.org/wp-admin/) and check for any visible issues.

Please contact your host for assistance with investigating this issue further.

If your site appears broken and you can't access your dashboard
normally, WordPress now has a special "recovery mode". This lets you
safely login to your dashboard and investigate further.

https://tranceam.org/sign-in/?redirect_to=https%3A%2F%2Ftranceam.org%2Fwp-admin%2F&action=enter_recovery_mode&rm_token=dIMCLufOqrFCnvOuLy2Wmq&rm_key=WDMqlTQRkhgtAnyLfRq4lz

To keep your site safe, this link will expire in 1 day. Don't worry
about that, though: a new link will be emailed to you if the error
occurs again after it expires.

When seeking help with this issue, you may be asked for some of the
following information:
WordPress version 6.1.1
Active theme: Twenty Seventeen (version 3.1)
Current plugin: SimpLy Gallery Block & Lightbox Pro (version 3.0.9)
PHP version 8.0.28

Error Details
=============
An error of type E_ERROR was caused in line 381 of the file
/home/y3i9dgp/public_html/wp-content/plugins/simply-gallery-block-premium/freemius/includes/class-fs-api.php.
Error message: Uncaught Error: Call to undefined method
Freemius_Api_WordPress::RemoteRequest() in
/home/y3i9dgp/public_html/wp-content/plugins/simply-gallery-block-premium/freemius/includes/class-fs-api.php:381
Stack trace:
#0 /home/y3i9dgp/public_html/wp-content/plugins/simply-gallery-block-premium/freemius/includes/class-freemius.php(24868):
FS_Api::remote_request()
#1 /home/y3i9dgp/public_html/wp-content/plugins/simply-gallery-block-premium/freemius/includes/class-fs-plugin-updater.php(933):
Freemius::safe_remote_post()
#2 /home/y3i9dgp/public_html/wp-content/plugins/simply-gallery-block-premium/freemius/includes/class-fs-plugin-updater.php(621):
FS_Plugin_Updater->fetch_wp_org_module_translation_updates()
#3 /home/y3i9dgp/public_html/wp-includes/class-wp-hook.php(310):
FS_Plugin_Updater->pre_set_site_transient_update_plugins_filter()
#4 /home/y3i9dgp/public_html/wp-includes/plugin.php(205):
WP_Hook->apply_filters()
#5 /home/y3i9dgp/public_html/wp-includes/option.php(2018): apply_filters()
#6 /home/y3i9dgp/public_html/wp-includes/update.php(391): set_site_transient()
#7 /home/y3i9dgp/public_html/wp-includes/update.php(1020): wp_update_plugins()
#8 /home/y3i9dgp/public_html/wp-includes/class-wp-hook.php(308):
_maybe_update_plugins()
#9 /home/y3i9dgp/public_html/wp-includes/class-wp-hook.php(332):
WP_Hook->apply_filters()
#10 /home/y3i9dgp/public_html/wp-includes/plugin.php(517): WP_Hook->do_action()
#11 /home/y3i9dgp/public_html/wp-admin/admin.php(175): do_action()
#12 /home/y3i9dgp/public_html/wp-admin/index.php(10):
require_once('/home/y3i9dgp/p...')
#13 {main}
  thrown