diff --git a/25-project-log-parser-structs/log_err_missing.txt b/25-project-log-parser-structs/log_err_missing.txt
new file mode 100644
index 0000000..fd8eff4
--- /dev/null
+++ b/25-project-log-parser-structs/log_err_missing.txt
@@ -0,0 +1,6 @@
+learngoprogramming.com 10
+learngoprogramming.com 10
+golang.org
+golang.org 6
+blog.golang.org 20
+blog.golang.org 10
\ No newline at end of file
diff --git a/25-project-log-parser-structs/log_err_negative.txt b/25-project-log-parser-structs/log_err_negative.txt
new file mode 100644
index 0000000..60485c0
--- /dev/null
+++ b/25-project-log-parser-structs/log_err_negative.txt
@@ -0,0 +1,6 @@
+learngoprogramming.com 10
+learngoprogramming.com 10
+golang.org -100
+golang.org 6
+blog.golang.org 20
+blog.golang.org 10
\ No newline at end of file
diff --git a/25-project-log-parser-structs/log_err_str.txt b/25-project-log-parser-structs/log_err_str.txt
new file mode 100644
index 0000000..3a55bd7
--- /dev/null
+++ b/25-project-log-parser-structs/log_err_str.txt
@@ -0,0 +1,6 @@
+learngoprogramming.com 10
+learngoprogramming.com 10
+golang.org FOUR
+golang.org 6
+blog.golang.org 20
+blog.golang.org 10
\ No newline at end of file