Lightning Network Plus is not recognizing my node channel's count

It's likely that you have 5 channels that are public and 5 that are private. We can't see private channels.

All channels are public!

Well, there is no single lightning network. Different nodes see a sligthly different set of channels.
Cheeserobot sees 5: https://cheeserobot.org/node/03fef777d58a529df02a3fb267690e0c9033767b555cc1c63844bb2d3498789f91
LNRouter sees 5: https://lnrouter.app/node/03fef777d58a529df02a3fb267690e0c9033767b555cc1c63844bb2d3498789f91
Mempool sees 6: https://mempool.space/lightning/node/03fef777d58a529df02a3fb267690e0c9033767b555cc1c63844bb2d3498789f91
Amboss sees 9: https://amboss.space/node/03fef777d58a529df02a3fb267690e0c9033767b555cc1c63844bb2d3498789f91
Hash XP sees all 10: https://hashxp.org/lightning/node/03fef777d58a529df02a3fb267690e0c9033767b555cc1c63844bb2d3498789f91

So, why Lightningnetworkplus sees only 5? They are in fact 10. One peer is offline right now!
And Amboss sees 10.

LN+ sees 6 now, Mempool sees 7. It looks like you need to peer to more nodes to get more gossip info out.