Elbow pain while performing bench press

Hey guys,

I have been facing mild elbow pain while doing barbell bench press for the last two weeks. The bench I use is a standard bench press equipment. I find it difficult to get the loaded barbell off the starting position as I feel my arms are not long enough. To be honest, I have only used barbell bench press 5-6 times in my entire life as I feel much comfortable doing the dumbbell bench press. Currently, I am two weeks into PB1, and I want to make sure I get most out of this training plan by following the template religiously. Just so you know, I can do 90x3 reps (per arm) @ RPE 9 with dumbbell bench press without any elbow pain but when I do the barbell bench press, the elbow pain starts to kick in at 135 lbs. I plan to start benching on Rogue Squat Rack we have at the gym so it’s more adjustable to my needs or maybe switch to smith machine. Please let me know what y’all think about it.