You will probably need to go back to court to file either to enforce an existing court order or to modify it. You can inform the court of the other parent's refusal to abide by the schedule and the court can impose conditions such as "if you don't notify the custodial parent of a change of plans in 24 hours the custodial parent can suspend the visit or some other type of restriction or suspension of visits.
Answered on Sep 20th, 2017 at 1:34 PM