I have the same problem after upgrading Typo3 CMS from version 8 to version 9, the upgrade wizard don't run and show this error:
Ajax error
Deprecated: Automatic TCA migration done during bootstrap. Please adapt TCA accordingly, these migrations will be removed. The backend module "Configuration -> TCA" shows the modified values. Please adapt these areas: The TCA table 'pages_language_overlay' is not used anymore and has been removed automatically in order to avoid negative side-effects. in /home/deindesi/public_html/typo3_src-9.5.31/typo3/sysext/core/Classes/Utility/ExtensionManagementUtility.php on line 1731
{"success":true,"needsUpdate":true,"adds":{"columns":[{"table":"pages","field":"rowDescription"},{"table":"pages","field":"sys_language_uid"},{"table":"pages","field":"l10n_parent"},{"table":"pages","field":"l10n_source"},{"table":"pages","field":"l10n_state"},{"table":"pages","field":"l10n_diffsource"},{"table":"pages","field":"slug"},{"table":"pages","field":"legacy_overlay_uid"},{"table":"sys_history","field":"actiontype"},{"table":"sys_history","field":"usertype"},{"table":"sys_history","field":"userid"},{"table":"sys_history","field":"originaluserid"},{"table":"sys_history","field":"workspace"},{"table":"tt_content","field":"filelink_sorting_direction"},{"table":"tx_scheduler_task","field":"deleted"},{"table":"index_phash","field":"static_page_arguments"},{"table":"sys_note","field":"position"}],"indexes":[{"table":"pages","index":"language_identifier"},{"table":"pages","index":"slug"},{"table":"pages","index":"translation_source"},{"table":"sys_file","index":"parent"},{"table":"sys_file_metadata","index":"parent"},{"table":"sys_file_reference","index":"t3ver_oid"},{"table":"tt_content","index":"translation_source"},{"table":"tx_extensionmanager_domain_model_repository","index":"parent"},{"table":"tx_extensionmanager_domain_model_extension","index":"parent"}]}}
I have tried to clear the cache, also i have set the display errors to 1.
I don't know how to change this TCA config so the upgrade can run?
If anyone is still experiencing this problem after disabling all extensions:
After removing the following line in the 'SYS' section of the LocalConfiguration.php, I was able to access the upgrade wizard again.
'errorHandler' => '',