Please update to this version as soon as possible. (Close the previous v3 wallet, then open the new one.)
Changes:
*[FIX] Change phash -> pow_hash for pools
*[FIX] Restore drift limit (tightens consensus rules, mandatory update)
*[RPC] Fix sendmany etc. payments with >6 decimal places
*[UI] Remove visual "unknown rules" message
*[UI] Fix QT UI problems when using shells
Source: https://github.com/ShieldCoin/SHIELD
Stable binaries: https://github.com/ShieldCoin/SHIELD/releases/tag/stable
Beta binaries: https://github.com/ShieldCoin/SHIELD/releases/tag/v3.0-beta
I tried to run my wallet in Debian and my attempt ended in failure. The OS can not determine files of this type. Is there any manual for the installation?