Below is a list of PortableApps.com applications ID which have a missing/broken screenshot on their page:
icofxportable
seamonkeyportable
seamonkeyportable2ndprofile
eraserdropportable
PortableApps.comLauncher
Also some issues in update.ini
ClickyGonePortable's URL should be = https://portableapps.com/apps/utilities/clicky-gone-portable
LibreCADPortable's URL should be = https://portableapps.com/apps/graphics_pictures/librecad-portable
xpyPortable's URL should be = https://portableapps.com/apps/utilities/xpy-portable
RapidCRCUnicodePortable's URL should be = https://portableapps.com/apps/utilities/rapid-crc-unicode-portable
FirefoxPortableESR's URL should be = https://portableapps.com/apps/internet/firefox-portable-esr
PicPickPortable's URL should be = https://portableapps.com/apps/graphics_pictures/picpick-portable
FontForgePortable's URL should be = https://portableapps.com/apps/utilities/fontforge-portable
RawTherapeePortable's URL should be = https://portableapps.com/apps/graphics_pictures/rawtherapee-portable
Cheers!
The above have been fixed. Note that 2ndProfiles have no screenshots.
Sometimes, the impossible can become possible, if you're awesome!