Error Message Help - Processing

Listed below are a series of errors along with the screenshots and brief explanations:
 
Bad Card Swipe – Credit Card swiped incorrectly through audio jack swiper or mag strip was not read.
http://i.imgur.com/prAf4hA.png
Credit Card Process Error - Unable to process Credit Card Sale because there is no WiFi connection
http://i.imgur.com/XHbzs0V.png
Credit Card Process Error - Unable to process Tip because there is no WiFi connection. After three (3) attempts you will be met with the second error message. 
http://i.imgur.com/AuYgMmD.png
http://i.imgur.com/fCxDLnt.png
CC Error - The micro USB credit card swiper is unable to return value to a credit card. To perform a return a transaction must be associated. To perform these actions visit Transaction Detail or Transaction Lookup.
http://i.imgur.com/1oYdb4E.png
Bad Card Swipe – Credit Card swiped incorrectly through micro USB swiper or mag strip was not read. Attempt swipe slowly.
http://i.imgur.com/BKmCKfg.png
Can't find credt authorization record - After processing sale on table connection was lost and tip can not be added to charge
http://i.imgur.com/UXbrSC5.png
Decline – This error will appear when a credit card sale that has been declined by the card holder's bank
http://i.imgur.com/YLMPIjB.png
http://i.imgur.com/Ypom4Wk.png
Credit Card Process Error – This error will appear when the invalid CVV code has been entered for a sale.
http://i.imgur.com/oW2fjNL.png
Invalid Month/Year - Manual Entry – This error will appear when the restaurant user manually enters an invalid month.
http://i.imgur.com/hWxqMQx.png
http://i.imgur.com/nZ3wkaw.png
Credit Card Process Error – This error will appear when a USB swiper account attempts to process an invalid card # manually
http://i.imgur.com/CnasPwD.png
Account Setup Errors - If you recieve any of the below error messages please contact support
http://i.imgur.com/lVUmmVW.png
http://i.imgur.com/0BnOSRv.png
http://i.imgur.com/VaIbjvN.png
Duplicate Transactions - If you receive the error message below, please contact support.
http://i.imgur.com/WDRCB5l.jpg