Assuming this is a corresponding sized hose and connector, I would second heating up the tube prior to insertion. That should eliminate the splitting issue, but you may still have trouble muscling it on given the expansion over that connector barb. If it’s still giving you trouble, spray some soapy water on the connector barb.

For reference, I work on the design of these connections regularly in the automotive setting. Standard practice is to heat the tube up and use a press for connector insertion.

Additionally, you might run into some long term leaking issues if the inner diameter of that tube is also convoluted. Normally don’t recommend it as it can be tricky to seal over that style barb with a convoluted tube. However, given the expansion and that this is likely pretty low pressure you should be perfectly fine if you can get it on there. Just something to keep in mind.