"Edit with elementor" button missing

Question

I've got a site hosted on altervista.org that works with WordPress 5.9.3. I use Elementor for my pages. I've recently installed a plugin called "Redirection", and since then the button "edit with Elementor" disappeared. I've deleted Redirection and reinstalled Elementor but it still doesn't work. I tried to switch my current theme (blocksky) with a default one but the problem persists. I've deactivated all the other plugins except for Elementor and the button is still missing. I've cleared all the caches that I could. Pages' checkbox in elementor's settings is checked. All the plugins are up to date (I've also tried downgrading elementor but nothing). All the elementor's experiments are deactivated. What can I do?

Here are elementor logs:

JS: 2022-03-26 15:40:48 [error X 1261][https://sharingnotes.altervista.org/wp-content/plugins/elementor/assets/lib/pickr/pickr.min.js?ver=1.5.0:2:16820] Cannot read property \'clone\' of null 
JS: 2022-03-26 15:40:50 [error X 34][https://sharingnotes.altervista.org/wp-content/plugins/elementor/assets/lib/pickr/pickr.min.js?ver=1.5.0:2:21012] Cannot read property \'changestop\' of null 
JS: 2022-03-30 15:18:51 [error X 22][https://sharingnotes.altervista.org/wp-includes/js/jquery/jquery.min.js?ver=3.6.0:2:31703] this[binder] is not a function 
JS: 2022-04-02 08:39:04 [error X 2][https://sharingnotes.altervista.org/wp-content/plugins/elementor/assets/js/editor.min.js?ver=3.6.1:2:515679] Cannot read property \'getBoundingClientRect\' of null 
Log: showing 5 of 5
2022-05-01 15:23:03 [info] Elementor data updater process has been queued. [array (
  'plugin' => 'Elementor',
  'from' => '3.6.1',
  'to' => '3.6.5',
)]
2022-05-01 15:23:14 [info] elementor::elementor_updater Started 
2022-05-01 15:23:14 [info] Elementor/Upgrades - _on_each_version Start  
2022-05-01 15:23:14 [info] Elementor/Upgrades - _on_each_version Finished 
2022-05-01 15:23:14 [info] Elementor data updater process has been completed. [array (
  'plugin' => 'Elementor',
  'from' => '3.6.1',
  'to' => '3.6.5',
)]
PHP: showing 1 of 1
PHP: 2022-05-01 16:01:33 [notice X 7][/membri/sharingnotes/wp-content/plugins/elementor/core/experiments/experiments-reporter.php::89] Undefined index: title [array (
  'trace' => '
#0: Elementor\Core\Logger\Manager -> shutdown()
',
)]

Thanks in advance for your answer.