Error on installing apps onto SD card

[melnsee]

The SD Card is properly inserted into slot. But when I try to install java game onto it, no Option "Transflash" for me to choose. I can't install pkg apps either. Though, all apps installed before work properly.
This error may happen after I opened this card by a card reader on PC
Can anyone give me a help!

[Bolik]

if u can write files onto SD card, try to increase space, deleting some files from SD card.

to install succesfully non-damaged apps into SD try to delete content of folder
/mmc/mmca1/.system/QTDownLoad/installtmp

[melnsee]

This is not case of full disk. I find some strange files, delete them all and that work! This seem to be a kind of usb virus