I have 2 HANA cloud trial accounts and I'm getting a different error message from each account when creating a HANA instance from the SAP HANA Cloud Platform Cockpit. See below:
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TRIAL ACCOUNT 1
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Unable to create trial instance 'hanaxs': Internal Server Error (500) - Error when generating certificate for account 'c5221352sapdev' and HANA Trial instance 'hanaxs'.
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TRIAL ACCOUNT 2
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Unable to create trial instance 'shshfhgfhf': Internal Server Error (500) - Unexpected exception in createSchema() called with account 'c5221352trial', schema 'shshfhgfhf', DB Type 'hanaxs', DB Version '1.00.85.00.397590', and DB Server 'null'