When you log a found on a cache PGC gets the info very fast, but when you edit your log it might take a while for PGC to be informed about that. Since the cache was found by an other user today the error will probably correct itself within 24h since PGC gets the info about the other cachers found very fast and at that moment it also gets the info about your edit.
If you want to correct this manually, go back to the main PGC site. On most pages you have a orange button labeled "Support" in the top right corner, click that button. You then click the blue button labeled "Self-support" and add the GCcode you wanna refresh in the input box at the bottom of the popup window, click the button labeled "Refresh" next to the input box. This starts a refresh job for that cache. When the job is done your streak should be correct in the top list that I linked earlier, your Profile Stats will take a little while longer as mentioned by TigreToot. :)