fixed a few typos in exception messages
fixed a few typos in exception messages

icelty/LiteDB,Xicy/LiteDB,prepare/LiteDB,masterdidoo/LiteDB,masterdidoo/LiteDB,Skysper/LiteDB,falahati/LiteDB,mbdavid/LiteDB,RytisLT/LiteDB,89sos98/LiteDB,89sos98/LiteDB,prepare/LiteDB,falahati/LiteDB,prepare/LiteDB,RytisLT/LiteDB,prepare/LiteDB