Excuse me, but maybe I didn't understood correctly.
Where exactly should I put the imgur links ?

...
You mean like this?
LE. I did it, but doesn't work.
PHP Code:
new const RankImages[][] =
{
"https://i.imgur.com/TNGjSQ1.png",
"https://i.imgur.com/3JMJRgP.png",
"https://i.imgur.com/XZFnqci.png",
"https://i.imgur.com/vQGI3JF.png",
"https://i.imgur.com/xarhxL1.png",
"https://i.imgur.com/2fYpWcP.png",
"https://i.imgur.com/ht9qRjQ.png",
"https://i.imgur.com/dNDSg2z.png",
"https://i.imgur.com/PV23Sth.png",
"https://i.imgur.com/HpnJVGF.png",
"https://i.imgur.com/BAsfFx2.png",
"https://i.imgur.com/mmxeQs3.png",
"https://i.imgur.com/R0My8PY.png",
"https://i.imgur.com/TXQiM4t.png",
"https://i.imgur.com/jmzaSum.png"
};
public GiveTopInformation(FailState, Handle:Query, Error[], Errcode, DataPlayer[], DataSize)
{
new id, PlayerName2[32], Number[10], Number2[10], Number3[10], Number4[10], PlayerPoints, PlayerKills, PlayerDeaths, PlayerHs, iMOTDPos, string[3036], iNumResults;
id = DataPlayer[0], string[0] = EOS;
iMOTDPos = format(string, charsmax(string), "<html><head><style>body{background:#FFF;font-family:Tahoma}th{background:#056B9E;color:#FFF;padding:3px;text-align:left;border-top:4px solid #3986AC}td{background:#CCCCCC;padding:2px 6px;border-bottom:1px dotted}table{color:#006699;background:#FFF;font-size:15px;border:2px solid #006699}</style></head><body><table width=100%% border=0 align=center cellpadding=0 cellspacing=1>");
iMOTDPos += format(string[iMOTDPos], charsmax(string)-iMOTDPos, "<center><img src='https://i.imgur.com/4kypRjN.png'></center><br/><tr><th>Rank<th>Nick<th>Points<th>Kills<th>Deaths<th>HS</tr>");
iNumResults = SQL_NumResults(Query);
if(iNumResults)
{
for(new i; i < iNumResults; i++)
{
SQL_ReadResult(Query, 1, PlayerName2, charsmax(PlayerName2)), PlayerPoints = SQL_ReadResult(Query, 3), PlayerKills = SQL_ReadResult(Query, 4), PlayerDeaths = SQL_ReadResult(Query, 5), PlayerHs = SQL_ReadResult(Query, 6),
AddCommas(PlayerPoints, Number, charsmax(Number)), AddCommas(PlayerKills, Number2, charsmax(Number2)), AddCommas(PlayerDeaths, Number3, charsmax(Number3)), AddCommas(PlayerHs, Number4, charsmax(Number4));
iMOTDPos += format(string[iMOTDPos], charsmax(string)-iMOTDPos, "<tr><td><img src='https://i.imgur.com/%s'> %d<td>%s<td>%s<td>%s<td>%s<td>%s</tr>", RankImages[ i ], i+1, PlayerName2, Number, Number2, Number3, Number4);
SQL_NextRow(Query);
}
}
copy(string[iMOTDPos], charsmax(string)-iMOTDPos, "</table><center><img src='https://i.imgur.com/XR2ZufG.png'></center></body></html>");
show_motd(id, string, "[PLOIESTI] Top 15 Players");
return PLUGIN_HANDLED;
}
Don't worry anymore. It seems that this is how suppose to be if is not working. I will leave it without images, it was fancy though, but ..
Thank again for your support.