Uncaught exception from plugin updates

I was having a nice sunny day updating WordPress to 5.6.2, followed by updating the plugins Akismet, Jetpack, and WP-PageNavi when this happened at the bottom of the Update page for plugins:

Fatal error: Uncaught Error: Class 'Automattic\Jetpack\Connection\Tokens' not found in /<my_absolute_path>/wp-content/plugins/jetpack/vendor/automattic/jetpack-connection/src/class-client.php:75 
Stack trace: #0 /<my_absolute_path>/wp-content/plugins/jetpack/vendor/automattic/jetpack-connection/src/class-client.php(26): Automattic\Jetpack\Connection\Client::build_signed_request(Array, '<?xml version="...') 
#1 /<my_absolute_path>/wp-content/plugins/jetpack/vendor/automattic/jetpack-connection/legacy/class-jetpack-ixr-client.php(70): Automattic\Jetpack\Connection\Client::remote_request(Array, '<?xml version="...') 
#2 /<my_absolute_path>/wp-content/plugins/jetpack/vendor/automattic/jetpack-sync/src/class-actions.php(409): Jetpack_IXR_Client->query('jetpack.syncAct...', Array) 
#3 /<my_absolute_path>/wp-includes/class-wp-hook.php(287): Automattic\Jetpack\Sync\Actions::send_data(Array, 'deflate-json-ar...', 1615132072.4703, 'sync', 0.0026299953460693, 0.0095090866088867, 6, '6044f5a86feba' in /<my_absolute_path>/wp-content/plugins/jetpack/vendor/automattic/jetpack-connection/src/class-client.php on line 75

To be clear, no prior error came from WordPress, or from the individual updates of the three plugins (the status is that they were all “successfully installed”) — it was just this mess of error text at the bottom of the same page, that I at least tried to separate somewhat into different lines for you. Should I be worried about this? Is there something that needs to be fixed? The messages appear to implicate Jetpack.

Paul

• This topic was modified 5 years, 2 months ago by Paul King.
• This topic was modified 5 years, 2 months ago by Paul King.
• This topic was modified 5 years, 2 months ago by Paul King.