fix

src/components/WorkoutsSeries/Modals/AttachWorkoutModal.vue

@@ -153,7 +153,9 @@ export default {
     search: null,
     isLoading: false,
     isLoadingTimeout: null,
-    form: {},
+    form: {
+      estimate_time: null
+    },
     workoutId: null,
     selectedWorkout: {},
   }),
@@ -195,7 +197,7 @@ export default {
       this.selectedWorkout = response;
       this.form["set"] = response.suggested_set;
       this.form["per_set"] = response.suggested_per_set;
-      this.form["estimate_time"] = response.suggested_time;
+      this.form.estimate_time = response.suggested_time;
     },
     async WorkoutToSeries() {
       if (this.workoutId) {