Let's see your actual crontab entrie; I find it hany to put this commented text at the top of every crontab:
#minute (0-59),
#| hour (0-23),
#| | day of the month (1-31),
#| | | month of the year (1-12),
#| | | | day of the week (0-6 with 0=Sunday).
#| | | | | commands
#00 19 * * 2,5 /home/spike/scripts/testing.sh > /dev/null 2>&1