It wouls seem that you've updated your podcast by removing a couple of episodes with titles and descriptions in Hebrew after 17 April, and added a couple more dated 7th, 13th , and 14th May. These amendments appear to have been uploaded only today.
When you subscribed on a Mac - where the feed is read directly and Apple is not involved - the episodes match the actual feed, as I've described.
In Podcasts 'Browse', which reads Apple Podcasts/iTunes Store, the episodes match those in the web preview you linked to. I gather that iPhones don't read the feed directly.
The feed itself validates - there are some minor errors, plus four very old episodes with spaces in the URLs (this is not allowed) which presumably don't play. The categories you've chosen don't match those specified by Apple - see https://podcasters.apple.com/support/1691-apple-podcasts-categories
Basically, the updates you've made were only just submitted, and it can take a couple of days for Apple Podcasts/iTunes Store to catch up. It's likely that it will do so in a day or two: this is quite normal. Apple caches the feeds - there are thousands of them - and visits them in some sort of rotation, so how long it takes to update depends on where you are in the cycle when you post.
You should be aware, should it matter, that removing episodes does not remove them for people who have subscribed and downloaded them on a Mac.