My Arkansas Travelers have stopped

By Arkansas Travelers, I assume you are talking about tomatoes and not a baseball team.
The AT tomatoes are hybrids which have some heat tolerance but when the temperatures are high, most all tomatoes become infertile. This is usually at a temp of 87 degrees or above consistently during the day and over 70 degrees at night. When these temperatures are surpassed and sustained, the pollen become infertile and the blossoms drop off, if the form at all.
The good news is that fertility will return when it begins to cool next month and your AT tomatoes will once again be fertile.

Thanks for the question.