"Label Missing!" message when trying to bring the upcoming episodes (1 Viewer)

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When I go to MyTV, recorded episode, select "4 Upcoming episodes", I get a message "Label Missing!" on my screen. This happens to all of my recorded programs.
But when I go to EPG and select "Upcoming episodes" for a similar show, I get the upcoming episodes on the screen.

I would like to be able to select the upcoming episodes for the already recorded shows. Please help me to fix the problem!!!

Thank you.

MediaPortal Version: MediaPortal 1.2.1
MediaPortal Skin: Default Wide with MePo added and analog clock removed
Windows Version: Windows 7 Ultimate
CPU Type: Intel Core I7 2.8GHz
HDD: WDC SATA-2 80GB; Samsung SATA2, 750GB; Blu Ray drive: LiteOn iHES108
Memory: 4GB DDR3
Motherboard: Asus P7P55D PRO
Video Card: ASUS GeForce 9600GT Silent 650MHZ 512MB 1.8GHZ DDR3 PCI-E Dual DVI-I HDCP HDTV
Video Card Driver: Latest
Sound Card: IDT High Definition
Sound Card AC3: Optical out
Sound Card Driver: Latest
1. TV Card: Hauppauge WinTV HVR-1800, PCIe
1. TV Card Type: analog, ATSC
1. TV Card Driver: Latest
2. TV Card: Twinhan AD-SE200 (1028), PCIe
2. TV Card Type: DVB-S
2. TV Card Driver: Latest
3. TV Card:
3. TV Card Type:
3. TV Card Driver:
4. TV Card:
4. TV Card Type:
4. TV Card Driver:
MPEG2 Video Codec:
MPEG2 Audio Codec:
h.264 Video Codec:
Satelite/CableTV Provider: FTA/Cable/OTA
HTPC Case: Custom
Cooling:
Power Supply:
Remote: Universal, URC 200
TV: Samsung 58" 1080p Plasma HDTV (PN58B530)
TV - HTPC Connection: DVI/HDMI

 

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Anybody?