Fixed error handling and added payAmount number filtration to improve UX
Fixed error handling and added payAmount number filtration to improve UX

beregovoy68/WavesGUI,beregovoy68/WavesGUI,beregovoy68/WavesGUI,beregovoy68/WavesGUI,wavesplatform/WavesGUI,wavesplatform/WavesGUI,wavesplatform/WavesGUI,wavesplatform/WavesGUI