@sshah16
This type of error usually points to an issue with the data in the Solution training dataset. ML does not like empty values, so you should exclude empty values by adding the filter for each Input field(s) and Output field "is not empty". You should also include a filter "Closed on" last 6 months so that it is limited to 300,000 records, as this is the maximum that we support for Classification solution training.
If the issues persists, raise a new case with ServiceNow Support, so that we can look into the training dataset and check the ML Server logs to determine the root cause for not being able to train with the dataset provided.
Best regards,
Brian
