Post Upgrade 9.03 Ent to 10.03 CRM Screen Blank and Not working Or loading ?

Dear Team,

Recently I have Upgraded our system to 9.01 ENT to 9.03 Successfully.

When I Execute Command using silent upgrade for  9.03 To 10.0x We got Blank Errors and getting Below Errors.

Sugarcrm Log Error-:

Mon Nov 14 09:32:37 2022 [15463][-none-][FATAL] Sugar Licensing encountered an error: Failed to connect to authenticate.sugarcrm.com port 443: Connection timed out
Mon Nov 14 09:32:37 2022 [15463][-none-][FATAL] Exception in Controller: Exception: Invalid subscription json data in /var/www/html/sugarcrm/include/Entitlements/Subscription.php:92
Stack trace:
#0 /var/www/html/sugarcrm/include/Entitlements/Subscription.php(81): Sugarcrm\Sugarcrm\Entitlements\Subscription->parse('')
#1 /var/www/html/sugarcrm/include/Entitlements/SubscriptionManager.php(151): Sugarcrm\Sugarcrm\Entitlements\Subscription->__construct('')

#23 {main}
Mon Nov 14 09:33:01 2022 [20790][-none-][FATAL] Configuration variable date.timezone is not set, guessed timezone UTC. Please set date.timezone="UTC" in php.ini!
Mon Nov 14 09:33:03 2022 [20790][-none-][ERROR] Can't download product definition for version: 10.0.0
Mon Nov 14 09:33:03 2022 [20782][-none-][ERROR] Can't download product definition for version: 10.0.0
Mon Nov 14 09:33:05 2022 [20790][-none-][ERROR] Can't download product definition for version: 10.0.0
Mon Nov 14 09:33:05 2022 [20782][-none-][ERROR] Can't download product definition for version: 10.0.0

silentUpgardeError-:

Mon, 14 Nov 2022 09:35:01 +0000 [Upgrader] - Loading file cache/upgrades/temp/manifest.php
Mon, 14 Nov 2022 09:35:01 +0000 [Upgrader] - ERROR: The upgrade package is not compatible with this version of Sugar: 10.0.0
Mon, 14 Nov 2022 09:35:01 +0000 [Upgrader] - ERROR: Package verificaition failed

Thanks