If you are having difficulty finding your electronic I-94 record using CBP's I-94 website, the American Immigration Lawyers Association recommends using the following troubleshooting tips:

If none of the above efforts resolve the issue in locating your electronic I-94 record, telephone or visit a CBP Deferred Inspection Office and explain the problem. Over the years, we've seen several cases with visitors who were never issued a record. Contact the CBP with your flight information. Some of the Deferred Inspection Offices have been able to resolve the problem over the phone without an in person visit; however, other offices may require an in-person visit with the non-citizen.