Gates Chili is one of many districts statewide postponing their online testing.
State education officials say a technical issue disrupted some online testing, but most students were not affected.
The Education Department reports more than 116,000 students completed exams without problems, and says more than two million tests have been successfully submitted statewide so far.
The glitch impacted a limited number of schools using the grades three through eight system.
Officials say testing may be paused or rescheduled before the May fifteenth deadline, while the state works with its vendor to resolve the issue.