After applying the changes suggested by PaulS, eliminating the variables that no longer matter due to that and changing the url string to "GET http://bicicity.mba-software.com/geo_report.php?dev=3137336311<="+ tlatitud + "&lg=" + tlongitud + " HTTP/1.0\r\nConnection: close\r\n\r\n", the program reached a further point than before. However, now just as the program is sending the GET request, the program resets:

The number just befor the AT+CIPSEND=114 line is a freeMemory() print.