Use correct directory name

public/typo3conf/ext/ep_events/Configuration/TCA/Overrides/pages.php

@@ -135,7 +135,7 @@ call_user_func(function() {
 
     \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::registerPageTSConfigFile(
         'ep_events',
-        'Configuration/TSConfig/Page/Main.tsconfig',
+        'Configuration/TSconfig/Page/Main.tsconfig',
         'EP Events'
     );
 });

public/typo3conf/ext/ep_events/Configuration/TSConfig/Page/Main.tsconfig

@@ -1,5 +0,0 @@
-@import 'EXT:ep_events/Configuration/TSConfig/Page/Mod/WebLayout/BackendLayouts.tsconfig'
-@import 'EXT:ep_events/Configuration/TSConfig/Page/Wizards/NewContentElement.tsconfig'
-@import 'EXT:ep_events/Configuration/TSConfig/Page/RTE.tsconfig'
-@import 'EXT:ep_events/Configuration/TSConfig/Page/TCEFORM.tsconfig'
-@import 'EXT:ep_events/Configuration/TSConfig/Page/Mod/SHARED.tsconfig'

public/typo3conf/ext/ep_events/Configuration/TSconfig/Page/Main.tsconfig

@@ -0,0 +1,5 @@
+@import 'EXT:ep_events/Configuration/TSconfig/Page/Mod/SHARED.tsconfig'
+@import 'EXT:ep_events/Configuration/TSconfig/Page/Mod/WebLayout/BackendLayouts.tsconfig'
+@import 'EXT:ep_events/Configuration/TSconfig/Page/Mod/Wizards/NewContentElement.tsconfig'
+@import 'EXT:ep_events/Configuration/TSconfig/Page/RTE.tsconfig'
+@import 'EXT:ep_events/Configuration/TSconfig/Page/TCEFORM.tsconfig'