diff --git a/journal/logbook_gustavo.md b/journal/logbook_gustavo.md
index 8203074f0e882f659a394b382e8c15af4e99cf5f..4463e417db4cc2cfd78270995233bf9f691efe0e 100644
--- a/journal/logbook_gustavo.md
+++ b/journal/logbook_gustavo.md
@@ -29,4 +29,34 @@ At the beginning of the task, I encountered a Git error while trying to push my
 
 ### Notes
 
-Once the Git issue was resolved, I was able to finish the task without further problems.
\ No newline at end of file
+Once the Git issue was resolved, I was able to finish the task without further problems.
+
+## Mission 4: Analysis of the incidence of influenza/chickenpox illness with a local copy of the data
+
+**Date:** June 23, 2025  
+**Duration:** Approximately 2 hours  
+**Directory:** `mooc-rr/module3/exo1`, `mooc-rr/module3/exo2`  
+**Tools used:** Jupyter Notebook, GitLab, Matplotlib, pandas, isoweek
+
+### What I did
+
+- Uploaded a local CSV file for analysis.  
+- Cleaned the dataset by removing empty rows.  
+- Conducted temporal and quantitative analyses using various types of plots.
+
+### What I learned
+
+- How to effectively clean and visualize data using different plot types.  
+- How to upload and manage local files within the workflow.  
+- Techniques for processing and manipulating data in tabular formats.
+
+### Difficulties encountered
+
+- For exercise 3.2, there was a problem in data processing because one year had 38 weeks.
+The following change was made to the code:
+
+`assert abs(len(one_year)-52) < 2` 
+
+*to*
+
+`assert abs(len(one_year)-52) < 2 or len(one_year) == 38`
\ No newline at end of file
diff --git a/module3/exo1/influenza-like-illness-analysis.ipynb b/module3/exo1/influenza-like-illness-analysis.ipynb
index 07243878c94dacbbe9ea0c3f8eb6060eba51cf84..0a6ac89e3ce1b914a4fae61540deb4a667cc49ca 100644
--- a/module3/exo1/influenza-like-illness-analysis.ipynb
+++ b/module3/exo1/influenza-like-illness-analysis.ipynb
@@ -2493,9 +2493,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "collapsed": true
-   },
+   "metadata": {},
    "outputs": [],
    "source": []
   }