I need assistance with a PHP error related to the announcement block and default manuscript. Can you please help me resolve this issue?

Describe the issue or problem
I have encountered numerous errors in PHP related to the announcement block and default manuscript. Is there a solution to resolve these issues?

[08-Oct-2023 14:06:58 UTC] Missing locale key “plugins.themes.defaultManuscript.option.accentColour.label” for the locale “en”
[08-Oct-2023 14:06:59 UTC] Exception: Plugin announcementsBlock expected to inherit from AnnouncementsBlockPlugin, actual type NULL in /home4/acspu21c/public_html/journals/lib/pkp/classes/plugins/PluginRegistry.php:203
Stack trace:
#0 /home4/acspu21c/public_html/journals/lib/pkp/classes/plugins/PluginRegistry.php(219): PKP\plugins\PluginRegistry::_instantiatePlugin(‘blocks’, ‘announcementsBl…’, ‘AnnouncementsBl…’)
#1 /home4/acspu21c/public_html/journals/lib/pkp/classes/plugins/PluginRegistry.php(112): PKP\plugins\PluginRegistry::_loadFromDatabase(‘blocks’, NULL)
#2 /home4/acspu21c/public_html/journals/lib/pkp/classes/template/PKPTemplateManager.php(1440): PKP\plugins\PluginRegistry::loadCategory(‘blocks’, true)
#3 [internal function]: PKP\template\PKPTemplateManager->displaySidebar('Templates

Steps I took leading up to the issue
"I am aware that these plugins have not been updated, but I kindly request someone to make them compatible, as they are mandatory in OJS

What application are you using?
For example, OJS 3.4.0-3

Additional information
Please add any screenshots, logs or other information we can use to investigate this problem.