Bullet Proof Security and PHP error alerts

Hello

I am using the Bullet Proof Security plugin. I now get many PHP error alerts. See below. Are these things I need to be concerned with?

[25-Oct-2011 00:06:11] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:11] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:12] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:12] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:13] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:13] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:13] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:13] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:14] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:14] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:14] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:14] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:15] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:15] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:16] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:16] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:16] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:16] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:17] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:17] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:17] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:17] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:17] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:17] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:18] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:18] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:18] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:18] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:19] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:19] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:20] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:20] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:21] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:21] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:21] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:21] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:22] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:22] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199
[25-Oct-2011 00:06:22] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 198
[25-Oct-2011 00:06:22] PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/virtual/public_html/wp-includes/class-wp.php on line 199