Error email account?

Hi,
I need your help. I don’t know why but on my website dotdashbar.pl there is an error which looks like that:

2015 06 01=da=0&email=18327927&email_count=71&email_count_incoming=68&email_count_outgoing=3&ftp=0&http=119157&http_homedir=0&http_ul=0&imap=42902&other=0&pop=4118558&total=22608544 2015 06 02=da=0&email=3782278&email_count=60&email_count_incoming=60&email_count_outgoing=0&ftp=0&http=0&http_homedir=0&http_ul=0&imap=16034&other=0&pop=3056956&total=6855268 2015 06 03=da=0&email=41266796&email_count=73&email_count_incoming=73&email_count_outgoing=0&ftp=0&http=873386&http_homedir=0&http_ul=0&imap=40688&other=0&pop=4107632&total=46288502 2015 06 04=da=0&email=3003026&email_count=50&email_count_incoming=50&email_count_outgoing=0&ftp=0&http=65456&http_homedir=0&http_ul=0&imap=0&other=0&pop=2795834&total=5864316 2015 06 05=da=0&email=4626026&email_count=58&email_count_incoming=58&email_count_outgoing=0&ftp=0&http=54020&http_homedir=0&http_ul=0&imap=0&other=0&pop=2753953&total=7433999 2015 06 06=da=0&email=1631649&email_count=45&email_count_incoming=45&email_count_outgoing=0&ftp=0&http=13741&http_homedir=0&http_ul=0&imap=0&other=0&pop=27383&total=1672773 2015 06 07=da=0&email=7853335&email_count=42&email_count_incoming=37&email_count_outgoing=5&ftp=0&http=7943&http_homedir=0&http_ul=0&imap=0&other=0&pop=8708161&total=16569439 2015 06 08=da=0&email=42053666&email_count=75&email_count_incoming=75&email_count_outgoing=0&ftp=0&http=420902&http_homedir=0&http_ul=0&imap=7379399&other=0&pop=8365379&total=58219346 2015 06 10=da=0&email=9809811&email_count=140&email_count_incoming=140&email_count_outgoing=0&ftp=0&http=459776&http_homedir=0&http_ul=0&imap=446036&other=0&pop=18152652&total=28868275 2015 06 11=da=0&email=3346995&email_count=76&email_count_incoming=76&email_count_outgoing=0&ftp=0&http=48878&http_homedir=0&http_ul=0&imap=38793&other=0&pop=2568098&total=6002764 2015 06 12=da=0&email=7721064&email_count=62&email_count_incoming=62&email_count_outgoing=0&ftp=0&http=57581&http_homedir=0&http_ul=0&imap=18318&other=0&pop=6831453&total=14628416 2015 06 13=da=0&email=31634058&email_count=41&email_count_incoming=41&email_count_outgoing=0&ftp=0&http=6942&http_homedir=0&http_ul=0&imap=0&other=0&pop=30820538&total=62461538 2015 06 14=da=0&email=2097590&email_count=43&email_count_incoming=42&email_count_outgoing=1&ftp=0&http=7878&http_homedir=0&http_ul=0&imap=0&other=0&pop=1158123&total=3263591 2015 06 15=da=0&email=77650946&email_count=72&email_count_incoming=70&email_count_outgoing=2&ftp=0&http=95885&http_homedir=0&http_ul=0&imap=0&other=0&pop=7018160&total=84764991 2015 06 16=da=0&email=153110032&email_count=95&email_count_incoming=84&email_count_outgoing=11&ftp=0&http=59413154&http_homedir=0&http_ul=0&imap=111448985&other=0&pop=126341821&total=450313992 2015 06 17=da=0&email=3640682&email_count=76&email_count_incoming=76&email_count_outgoing=0&ftp=0&http=577074&http_homedir=0&http_ul=0&imap=321913&other=0&pop=28937351&total=33477020 2015 06 18=da=0&email=22854830&email_count=85&email_count_incoming=80&email_count_outgoing=5&ftp=0&http=992883&http_homedir=0&http_ul=0&imap=41895&other=0&pop=6325342&total=30214950 2015 06 19=da=0&email=3012069&email_count=77&email_count_incoming=70&email_count_outgoing=7&ftp=0&http=72594&http_homedir=0&http_ul=0&imap=20111&other=0&pop=1509744&total=4614518 2015 06 20=da=0&email=3427941&email_count=31&email_count_incoming=31&email_count_outgoing=0&ftp=0&http=9017&http_homedir=0&http_ul=0&imap=0&other=0&pop=2001768&total=5438726 2015 06 21=da=0&email=2140628&email_count=44&email_count_incoming=44&email_count_outgoing=0&ftp=0&http=4199&http_homedir=0&http_ul=0&imap=0&other=0&pop=307608&total=2452435 2015 06 22=da=0&email=10063859&email_count=71&email_count_incoming=70&email_count_outgoing=1&ftp=0&http=388701&http_homedir=0&http_ul=0&imap=33735&other=0&pop=8800163&total=19286458 2015 06 23=da=0&email=3024621&email_count=77&email_count_incoming=70&email_count_outgoing=7&ftp=0&http=39488&http_homedir=0&http_ul=0&imap=0&other=0&pop=7439682&total=10503791 2015 06 24=da=0&email=68739509&email_count=80&email_count_incoming=79&email_count_outgoing=1&ftp=0&http=493137&http_homedir=0&http_ul=0&imap=8660&other=0&pop=3249043&total=72490349 2015 06 25=da=0&email=4977813&email_count=75&email_count_incoming=75&email_count_outgoing=0&ftp=0&http=90887&http_homedir=0&http_ul=0&imap=14086&other=0&pop=25525535&total=30608321 2015 06 26=da=0&email=2501932&email_count=66&email_count_incoming=66&email_count_outgoing=0&ftp=0&http=36148&http_homedir=0&http_ul=0&imap=43361&other=0&pop=4023718&total=6605159 2015 06 27=da=0&email=2228517&email_count=49&email_count_incoming=45&email_count_outgoing=4&ftp=0&http=8489&http_homedir=0&http_ul=0&imap=0&other=0&pop=3877505&total=6114511 2015 06 28=da=0&email=2029926&email_count=31&email_count_incoming=31&email_count_outgoing=0&ftp=0&http=58865&http_homedir=0&http_ul=0&imap=0&other=0&pop=1911776&total=4000567 2015 06 29=da=0&email=3576407&email_count=71&email_count_incoming=71&email_count_outgoing=0&ftp=0&http=30427&http_homedir=0&http_ul=0&imap=10011&other=0&pop=1227885&total=4844730 simpletotal=1046467289 total=da=0&email=540133933&email_count=1836&email_count_incoming=1789&email_count_outgoing=47&ftp=0&http=64446608&http_ul=0&imap=119924927&other=0&pop=321961821&total=1046467289

Can anyone tell me what is going on? Yesterday was everything all right. Is it some kind of virus?