i need help

i have a wallet for freebee bitcoins i collect on those sites giving out bitcoins, then i send those coins once i get a bunch to my MAIN wallet been doing that for over a month now.
(both wallets are in multibit)

now i have tried 3 different times to send some coin like this and it is only coming up seen by 1 peer but not seen in block chain. (i am sending the 0.001 required tx fee)

i was using 0.4.20 and then after i had trouble the first time i upgraded to 0.4.23 and still happened again, i had reset block chain from a date 1 day before that transaction and the bitcoins just disappear from both wallets......so i then reset form original date and all bitcoins are back so i try to send to main wallet again and it just keeps being seen by 1 peer but not showing up in either block explorer or blockchain......i dont know what to do?


and now i am noticing this error now

Unable to load "https://multibit.org/version.txt". The error was "javax.net.ssl.SSLHandshakeException sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target".